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150 Hardest and easiest questions for DS

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150 Hardest and easiest questions for DS  [#permalink]

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New post 21 Aug 2015, 02:42
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150 Hardest Data Sufficiency Questions (Oct 1st, 2018 - Nov 1st, 2018)

Are you familiar with the GMAT Club's timer?We have pulled timer results from our database and analyzed every question in the forum. Based on those results, we have compiled a list of the hardest questions in each of the question forums we have. Below I am presenting to you the top 150 questions from DS forum.
Data Sufficiency (DS)
RankTitleTopics
1Train A leaves New York for Boston at 3 PM and travels at Difficulty: 700-Level, Distance/Rate Problems
2In the correctly worked addition problem above, A, B, C, D Difficulty: 700-Level, Arithmetic, Number Properties, Source: Manhattan GMAT
3w, x, y, and z are integers. If w > x > y > z > 0, is y a common Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: Manhattan GMAT
4What is the perimeter of PQRS ? (1) x = 30 degree Difficulty: 700-Level, Geometry
5A car dealership carries only sedans and SUVs Difficulty: 700-Level, Percent and Interest Problems, Word Problems, Source: Veritas Prep
6If k is an integer and x(x – k) = k + 1, what is the value of x? Difficulty: 700-Level, Algebra, Source: Other - Please specify
7n and k are positive integers. When n is divided by 23, the quotient i Difficulty: 700-Level, Remainders, Source: GMATPrepNow
8If n is a prime number greater than 2, is 1/x > 1? Difficulty: 700-Level, Inequalities, Source: Manhattan GMAT
9If, in the addition problem above, a, b, c, d, e, f, x, y, a Difficulty: 700-Level, Arithmetic
10Math Revolution and GMAT Club Contest! There is a sequence, 4(10^n), Difficulty: 700-Level, Number Properties, Sequences, Source: Manhattan GMAT, Source: Math Revolution
11Right triangle ABO is drawn in the xy-plane, with OB as hypo Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
12When 120 is divided by positive single-digit integer m the remainder Difficulty: 700-Level, Absolute Values/Modulus, Divisibility/Multiples/Factors, Source: Other - Please specify
13For integers a and b, if (a^3 a^2 b)^1/2 = 7, what is the Difficulty: 700-Level, Algebra
14The average (arithmetic mean) of 5 distinct, single digit integers is Difficulty: 700-Level, Number Properties, Source: Princeton Review
15Abe, Beth, Carl and Duncan are four siblings, among which Abe and Carl Difficulty: 700-Level, Number Properties, Source: e-GMAT
16The cost of 3 chocolates, 5 biscuits, and 5 ice creams is Difficulty: 700-Level, Word Problems
17If h and k are both positive integers, are both roots of the equation Difficulty: 700-Level, Algebra
18P and Q are prime numbers less than 70. What is the units digit of P*Q Difficulty: 700-Level, Number Properties, Source: e-GMAT
19What is b in the circle shown above? Difficulty: 700-Level, Geometry, Source: Other - Please specify
20Julian bought 6 kilograms of cheese from each of Deli A and Deli B. At Difficulty: 700-Level, Word Problems, Source: 800 Score
21If 20 Swiss Francs is enough to buy 9 notebooks and 3 Difficulty: 700-Level, Inequalities, Word Problems
22Is a - 3b an even number? Difficulty: 700-Level, Number Properties
23If x is a positive integer less than 100 such that x is Difficulty: 700-Level, Algebra, Exponents/Powers, Source: e-GMAT
24w, x, y, and z are integers. If z > y > x > w, is |w| > x^2 Difficulty: 700-Level, Absolute Values/Modulus, Inequalities, Source: Kaplan
25In the picture, quadrilateral ABCD is a parallelogram and Difficulty: 700-Level, Geometry
26The numbers D, N, and P are positive integers, such that D < N, and N Difficulty: 700-Level, Exponents/Powers, Number Properties, Source: Magoosh
27If x, y and z are positive integers such that x^4*y^3 = z^2 Difficulty: 700-Level, Number Properties, Source: e-GMAT
28The Range of Set A is R. A number having equal value to R Difficulty: 700-Level, Statistics and Sets Problems
29At a restaurant, a group of friends ordered four main dishes Difficulty: 700-Level, Min/Max Problems, Source: Manhattan GMAT
30If a, b, and c are positive integers such that 1/a + 1/b = 1 Difficulty: 700-Level, Fractions/Ratios/Decimals, Inequalities, Source: Manhattan GMAT
31Three employees, A, B and C, clean a certain conference room each day. Difficulty: 700-Level, Work/Rate Problems, Source: Other - Please specify
32A cube is made up of equal smaller cubes. Two of the sides Difficulty: 700-Level, Geometry
33A set of positive integers contains twice as many even integers as odd Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Probability
34If x, y, and z are all distinct positive integers and the percent Difficulty: 700-Level, Algebra, Number Properties, Percent and Interest Problems, Source: Manhattan GMAT
35Is 1/(x-y) < y - x Difficulty: 700-Level, Inequalities
36A natural number p, when divided by a certain divisor q, gives Difficulty: 700-Level, Number Properties, Remainders, Source: Jamboree
37A newer machine, working alone at its constant rate Difficulty: 700-Level, Work/Rate Problems, Source: Veritas Prep
38Is y^2 + 7y + xy even? Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
39The number of elements in set K is an odd number. The minimum value of Difficulty: 700-Level, Statistics and Sets Problems, Source: Math Revolution
40Maria drove a distance without stopping such that she covered first Difficulty: 700-Level, Distance/Rate Problems, Source: Other - Please specify
41W, X, Y, and Z represent distinct digits such that WX * YZ = 1995. Wha Difficulty: 700-Level, Number Properties, Source: Veritas Prep
42x, y are positive integers. Find the number of even factors of 4x^2 Difficulty: 700-Level, Divisibility/Multiples/Factors, Source: e-GMAT
43In a group of 80 college students, how many own a car? Difficulty: 700-Level, Overlapping Sets, Source: Magoosh
44How many prime factors does positive integer n have? Difficulty: 700-Level, Number Properties, Source: Veritas Prep
45If a and b are two-digit positive integers greater than 10 Difficulty: 700-Level, Remainders, Source: GMAT Club Tests
46If x, y, and z are integers, and x < y < z, is z y = y Difficulty: 700-Level, Statistics and Sets Problems, Source: Manhattan GMAT
47If a and b are positive integers, what is the remainder when ab is Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Remainders, Source: Manhattan GMAT
48If a, b, and c are integers such that 0 < a < b < c < 10, is Difficulty: 700-Level, Divisibility/Multiples/Factors, Source: Manhattan GMAT
49If n >2 and n^4-5n^2+4 = 20h, Is h an integer ? Difficulty: 700-Level, Algebra, Arithmetic, Source: Other - Please specify
50A red box contains 7 ropes, with an average length of 60 cm per rope, Difficulty: 700-Level, Arithmetic, Min/Max Problems, Source: Other - Please specify
51Students in a class are arranged to form groups of 4 members each Difficulty: 700-Level, Remainders, Source: Veritas Prep
52If a, b, x, y are positive integers and a^xb^y= 144, then a + b = ? Difficulty: 700-Level, Algebra, Exponents/Powers, Source: Math Revolution
53If pqr s is a four-digit number, where p, q, r and s are the digits, Difficulty: 700-Level, Divisibility/Multiples/Factors, Fractions/Ratios/Decimals, Source: Other - Please specify
54Between 1980 and 1985, Pierre’s investment portfolio increas Difficulty: 700-Level, Percent and Interest Problems, Source: Princeton Review
55Is |2a − 3b| < |a − b| + |a − 2b| Difficulty: 700-Level, Absolute Values/Modulus
56Is x^3 - 6x^2 + 11x - 6 < 0 Difficulty: 700-Level, Inequalities
57A drawer contains 6 socks. If two socks are randomly Difficulty: 700-Level, Probability, Source: GMATPrepNow
58If x is positive, what is the value of |x – 3| – 2|x – 4| + Difficulty: 700-Level, Absolute Values/Modulus, Inequalities, Source: Manhattan GMAT
59The area of a rectangle is 28 square centimeter. What is the perimeter Difficulty: 700-Level, Algebra, Geometry
60a, b, and c are three integers such that a and b are less than 100, an Difficulty: 700-Level, Number Properties, Sequences
61A three digit number A with hundreds digit a, tens digit b and units Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: Jamboree
62In the xy-coordinate plane, line A is defined by the equation j*x-y=-7 Difficulty: 700-Level, Coordinate Geometry, Source: GMAT Prep
63A certain ride has 60 people standing in line awaiting admission. If Difficulty: 700-Level, Overlapping Sets, Source: Other - Please specify
64If you are buying a product by rounding up to a $1 digit, is the sum o Difficulty: 700-Level, Algebra, Arithmetic, Percent and Interest Problems, Poor Quality, Source: Math Revolution
65For positive integers n and m (n>m), is the average (arithmetic mean) Difficulty: 700-Level, Number Properties, Statistics and Sets Problems, Source: Math Revolution
66In the correctly-worked multiplication problem above, each symbol repr Difficulty: 700-Level, Arithmetic, Number Properties, Source: Veritas Prep
67Reiko drove from point A to point B at a constant speed, and Difficulty: 700-Level, Distance/Rate Problems, Source: Manhattan GMAT
68Points A, B, C and D lie on a circle of radius 1. Let x be Difficulty: 700-Level, Geometry
69The nth term of an increasing sequence S is given by Sn = Sn-1 + Sn-2 Difficulty: 700-Level, Algebra, Sequences
70Is the exact value of x/y less than 0.5? Difficulty: 700-Level, Fractions/Ratios/Decimals, Source: Economist GMAT Tutor
71A committee of 2 people is to be formed from a group of 8 Difficulty: 700-Level, Probability
72In the xy-coordinate plane, line L passes through the points (b, a) an Difficulty: 700-Level, Coordinate Geometry, Source: Manhattan GMAT
73If a, b and c are distinct positive integers, what is the value of (a Difficulty: 700-Level, Exponents/Powers, Source: Other - Please specify
74Set X consists of 9 positive elements. Set Y consists of the Difficulty: 700-Level, Statistics and Sets Problems
75A certain diet program calls for eating daily calories from Difficulty: 700-Level, Word Problems, Source: GMAT Paper Tests
76If N is a positive three-digit number that is greater than 2 Difficulty: 700-Level, Fractions/Ratios/Decimals, Number Properties, Source: Manhattan GMAT
77In a sequence of 13 consecutive integers, all of which are Difficulty: 700-Level, Divisibility/Multiples/Factors, Sequences
78Is A + B + C even? Difficulty: 700-Level, Number Properties, Source: GMAT Club Tests
79If x and y are negative numbers, is x<y? Difficulty: 700-Level, Inequalities, Source: GMAT Club Tests
80If a and b are both positive integers, is b^(a+1) - ba^b odd? Difficulty: 700-Level, Algebra, Number Properties, Source: Manhattan GMAT
81At a particular store, candy bars are normally priced at $1. Difficulty: 700-Level, Word Problems, Source: Manhattan GMAT
82If 5a=9b=15c, what is the value of a+b+c? Difficulty: 700-Level, Algebra
83X is a three-digit positive integer in which each digit is either 1 or Difficulty: 700-Level, Fractions/Ratios/Decimals, Remainders, Source: Manhattan GMAT
84If 6xy = x^2*y + 9y, what is the value of xy? Difficulty: 700-Level, Algebra, Source: Manhattan GMAT
85A certain salesman's yearly income is determined by a base salary plus Difficulty: 700-Level, Percent and Interest Problems, Word Problems, Source: Manhattan GMAT
86A dental licensure exam requires a 75% minimum score in orde Difficulty: 700-Level, Fractions/Ratios/Decimals, Word Problems, Source: Veritas Prep
87If x and y are integers and -x < y < x, does (x^2 - y^2)^(1/2) = x + y Difficulty: 700-Level, Absolute Values/Modulus, Algebra, Coordinate Geometry, Number Properties, Source: GMAT Club Tests
88How many subordinates does Marcia have? Difficulty: 700-Level, Combinations
89R is a convex polygon. Does R have at least 8 sides? Difficulty: 700-Level, Geometry
90Is the integer 2b divisible by 6 ? Difficulty: 700-Level, Divisibility/Multiples/Factors
91w, x, y and z are positive integers such that y < z < x < w. Difficulty: 700-Level, Remainders, Source: GMATPrepNow
92If all the N students of a class are classified into groups of either Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: e-GMAT
93If m, n, and p are three-digit integers and m + n = p Difficulty: 700-Level, Number Properties, Source: Manhattan GMAT
94Each block from bin A is 4 inches tall, while each block from bin B is Difficulty: 700-Level, Algebra, Arithmetic, Min/Max Problems, Source: Other - Please specify
95What is the value of |(x+5)/(x+7)| Difficulty: 700-Level, Absolute Values/Modulus, Algebra, Source: Other - Please specify
96If x and y are positive integers, what is the value of x? Difficulty: 700-Level, Remainders, Source: GMATPrepNow
97If x, y, and k are positive integers, is k < 10 ? Difficulty: 700-Level, Algebra, Exponents/Powers, Roots, Source: Princeton Review
98If a, b and n are positive integers such that n = 3a – b3 Difficulty: 700-Level, Number Properties, Source: e-GMAT
99If x and y are nonzero integers, is (x^(-1) + y^(-1))^(-1) > Difficulty: 700-Level, Exponents/Powers, Inequalities, Source: Manhattan GMAT
1008 schools sent a total of 96 students to a math club competition, with Difficulty: 700-Level, Min/Max Problems, Source: Veritas Prep
101If x is a positive integer greater than 1, is x a prime numb Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: GMAT Club Tests
102In the figure above, SQRE is a square, AB = AC, and AS = AQ. Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
103When 3-digit integer 6a3 plus 3-digit integer 3b5 is divisible by 9, i Difficulty: 700-Level, Divisibility/Multiples/Factors, Source: Math Revolution
104If x, y, and z are positive integers, and (x!+x)/z=y, then Difficulty: 700-Level, Algebra, Divisibility/Multiples/Factors, Number Properties
105A certain floor of an office building has 1,200 square feet of floor Difficulty: 700-Level, Geometry
106Superfast train A leaves Newcastle for Birmingham at 3 PM and travels Difficulty: 700-Level, Distance/Rate Problems, Source: Veritas Prep
107Four friends go to Macy’s for shopping and buy a top each. Three of th Difficulty: 700-Level, Word Problems, Source: Veritas Prep
108Is xy<0 ? (1) x^3*y^5/x*y^2 <0 (2) |x|-|y|<|x-y Difficulty: 700-Level, Absolute Values/Modulus, Inequalities
109A rectangle is plotted on the standard coordinate plane Difficulty: 700-Level, Coordinate Geometry, Source: Grockit
110ax + by=10, ay + bx=12. which one is greater here, x or y ? Difficulty: 700-Level, Inequalities
111Jeff is painting two murals on the front of an old apartment Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
112Of all the attendees at a dinner party, 40% were women. If Difficulty: 700-Level, Overlapping Sets
113In the morning, Chris drives from Toronto to Oakville and in the eveni Difficulty: 700-Level, Distance/Rate Problems, Source: Veritas Prep
114A circle is drawn on a coordinate plane. If a line is drawn Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
115In triangle ABC (figure shown) drawn on a coordinate plane, A, B and C Difficulty: 700-Level, Coordinate Geometry, Source: Other - Please specify
116If x is an integer between 0 and 10 is y less than the average of x an Difficulty: 700-Level, Inequalities, Source: Other - Please specify
117A certain fruit stand sells only apples for $0.26 each, bananas for $0 Difficulty: 700-Level, Word Problems, Source: Veritas Prep
118If x is an integer, what is the value of x? Difficulty: 700-Level, Absolute Values/Modulus, Source: GMAT Pill
119If xy 0, is x > y? (1) 4x = 3y (2) |y - x| = x - y Difficulty: 700-Level, Absolute Values/Modulus, Inequalities
120Robots K, L and M assemble components at their respective constant res Difficulty: 700-Level, Fractions/Ratios/Decimals, Inequalities, Source: Other - Please specify
121If a number N is decreased by p percent and then the resulting value Difficulty: 700-Level, Algebra, Source: Manhattan GMAT
122In the sequence a1,a2,…,an,…,a1=x and an=y–zan−1 for all n>1. Is a3>a2 Difficulty: 700-Level, Sequences, Source: Veritas Prep
123In the trapezoid above, with sides a, b, c, and 1, what is the value o Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
124Is product 2*x*5*y an even integer? Difficulty: 700-Level, Number Properties, Source: GMAT Club Tests
125a, b, c, d, and e are five numbers such that a≤b≤c≤d≤e and e Difficulty: 700-Level, Statistics and Sets Problems, Source: Economist GMAT Tutor
126If ABD is a triangle, is triangle ABC a right triangle Difficulty: 700-Level, Geometry
127Of the 5 numbers, the largest number is 4 greater than the median. Is Difficulty: 700-Level, Statistics and Sets Problems
128In the table above is shown the percent reduction in the Difficulty: 700-Level, Percent and Interest Problems, Word Problems, Source: Princeton Review
129When a positive integer 'x' is divided by a divisor 'd', the remainder Difficulty: 700-Level, Divisibility/Multiples/Factors, Remainders, Source: Other - Please specify
130What is the value of y? Difficulty: 700-Level, Algebra, Arithmetic, Roots, Source: Magoosh
131The GMAT is scored on a scale of 200 to 800 in 10 point incr Difficulty: 700-Level, Statistics and Sets Problems, Word Problems, Source: GMAT Prep
132A nonprofit group organizes its local fundraisers in teams, Difficulty: 700-Level, Word Problems, Source: Veritas Prep
133If x, y, and z are positive integers, where x > y and z = √x Difficulty: 700-Level, Number Properties, Source: Kaplan
134If m and k are non-zero integers and if y^(m+k) = y^m, what is the Difficulty: 700-Level, Exponents/Powers, Number Properties
135If x/y > 2, is 3x + 2y < 18? (1) x - y is less than 2 (2) y - x is les Difficulty: 700-Level, Inequalities
136If 10^a * 3^b * 5^c = 450^n, what is the value of c? Difficulty: 700-Level, Number Properties, Source: Veritas Prep
137In a certain company, 25% of the women and 17% of the men participate Difficulty: 700-Level, Word Problems, Source: Magoosh
138Jane can paint the wall in J hours, and Bill can paint the Difficulty: 700-Level, Word Problems, Work/Rate Problems
139Is n/18 an integer? Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: Manhattan GMAT
140x is an integer and x raised to any odd integer is greater Difficulty: 700-Level, Algebra, Exponents/Powers, Source: Official Guide
141For any integer n greater than 1, factorial denotes the product of all Difficulty: 700-Level, Number Properties, Source: e-GMAT
142Which of the two values 10^(-2) and 10^(-3), is x more close Difficulty: 700-Level, Arithmetic, Exponents/Powers
143In the figure above, ABC is a right triangle with AC as its hypotenuse Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
144What is b in the circle shown above? (1) bc = 5a (2) The length of PQ Difficulty: 700-Level, Geometry, Source: Other - Please specify
145If x, y, and z are positive integers such that x < y < z Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
146If the original price of an item in a retail store is marked Difficulty: 700-Level, Percent and Interest Problems, Source: Manhattan GMAT
147A person inherited few gold coins from his father. If he Difficulty: 700-Level, Remainders, Word Problems
148If a, b and c are integers such that b > a, is b+c > a Difficulty: 700-Level, Geometry, Inequalities
149If n is an integer greater than 1 is 3^n-2^n divisible by 35 Difficulty: 700-Level, Divisibility/Multiples/Factors, Exponents/Powers, Number Properties
150If x and y are positive integers is y odd? Difficulty: 700-Level, Algebra, Number Properties, Source: Manhattan GMAT

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Re: 150 Hardest and easiest questions for DS  [#permalink]

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New post 21 Aug 2015, 02:43
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37

150 Easiest Data Sufficiency Questions (Oct 1st, 2018 - Nov 1st, 2018)

Are you familiar with the GMAT Club's timer?We have pulled timer results from our database and analyzed every question in the forum. Based on those results, we have compiled a list of the easiest questions in each of the question forums we have. Below I am presenting to you the top 150 questions from DS forum.
Data Sufficiency (DS)
RankTitleTopics
1What is the value of 10 percent of y? Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
2What is the value of x ? Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: Quant Review 2nd
3In College X the number of students enrolled in both a Difficulty: Sub-600 Level, Overlapping Sets, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12
4For which type of investment, J or K, is the annual rate of Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 2015, Source: OG 12
5If a certain vase contains only roses and tulips, how many tulips are Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
6What is the number of pages of a certain journal article? The size of Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
7The figure above represents a circle graph of Company H's total expens Difficulty: Sub-600 Level, Geometry, Graphs and Illustrations, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
8How many basic units of currency X are equivalent to 250 basi Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 2019
9The symbol R represents one of the following Difficulty: Sub-600 Level, Arithmetic, Functions and Custom Characters, Source: GMAT Hacks
10If sequence S has 120 terms, what is the 105th term of S? Difficulty: Sub-600 Level, Sequences, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
11In the xy-plane above, is angle QPR a right angle? Difficulty: Sub-600 Level, Coordinate Geometry, Geometry, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
12What is the value of w^(−2)? Difficulty: Sub-600 Level, Exponents/Powers, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
13If sequence S has 100 terms, what is the 83rd term of S? Difficulty: Sub-600 Level, Sequences, Source: Other - Please specify
14If p and q are positive, is p/q less than 1? Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017
15Carlotta can drive from her home to her office by one of two Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Official Guide, Source: OG 12, Source: OG 11, Source: OG 10
16What is the value of n? Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep
17If p, q, x, y, and z are different positive integers, which Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2nd
18Is x = 1/y? Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
19What is the value of xy? Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 10, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2nd
20What was the median annual salary for the employees at Compan Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2019
21Is p^2 an odd integer? Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
22In a recent town election, what was the ratio of the number of votes Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
23The research funds of a certain company were divided among three depar Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
24For the system of equations given, what is the value of z? Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11
25Hoses X and Y simultaneously fill an empty swimming pool tha Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
26Each of the marbles in a jar is either red or white or blue. If one ma Difficulty: Sub-600 Level, Probability, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
27Is x between 0 and 1? Difficulty: Sub-600 Level, Inequalities, Source: GMAT Prep, Source: Quant Review 2019
28Committee member W wants to schedule a one-hour meeting on T Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
29Is x < y? Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2nd
30Is rw = 0? Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
31In a certain class, some students donated cans of food to a local food Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
32What is the value of r/2 + s/2 ? Difficulty: Sub-600 Level, Algebra, Arithmetic, Source: Official Guide, Source: OG 10, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2nd
33What is the tenths digit of the number d when it is written as a...... Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: Quant Review 2018, Source: Quant Review 2017
34What is the value of x ? Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: Quant Review 2018, Source: Quant Review 2017
35What is 11% of x? (1) 3/8 of x is 24 (2) 5% of x is 3.2 Difficulty: Sub-600 Level, Arithmetic, Percent and Interest Problems, Source: Manhattan GMAT
36What is the value of n in the list above? Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
37How many people in a group of 50 own neither a fax machine nor a laser Difficulty: Sub-600 Level, Overlapping Sets, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
38How many of the students in a certain class are taking both a history Difficulty: Sub-600 Level, Number Properties, Word Problems, Source: GMAT Prep
39Is x < y? (1) z < y (2) z < x Difficulty: Sub-600 Level, Inequalities, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10
40If n is an integer, is n + 1 odd? Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
41How many men are in a certain company's vanpool program? Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
42What is the product of v, w, and x? Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep EP 1
43The number of seats in the first row of an auditorium is 18 Difficulty: Sub-600 Level, Sequences, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
44What is the value of w + q ? (1) 3w=3-3q (2) 5w +5q = 5 Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
45What is the value of z in the triangle above? Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10
46A garden store purchased a number of shovels and a number of Difficulty: Sub-600 Level, Word Problems
47Square ABCD is inscribed in circle O. What is the area of square regio Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
48What is the greatest integer that is less than t? Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep
49A circular pizza is cut into eight wedge-shaped slices of Difficulty: Sub-600 Level, Geometry, Source: Manhattan GMAT
50For all x, the expression x* is defined to be ax + a, where a is...... Difficulty: Sub-600 Level, Functions and Custom Characters, Source: Official Guide, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017
51Machine R and machine S work at their respective constant rates. How Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: OG 2019
52If sequence S has 200 terms, what is the 192nd term of S Difficulty: Sub-600 Level, Sequences, Source: OG 12
53What is the retail price of a certain calculator? (1) The retail pri Difficulty: Sub-600 Level, Arithmetic, Source: Manhattan GMAT
54What was the range of the selling prices of the 30 wallets sold by a Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
55If x and y are integers, what is the value of y ? Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 10, Source: Quant Review 2017, Source: Quant Review 2nd
56Was the amount of John's heating bill for February greater than it was Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
57What is the value of x^3? Difficulty: Sub-600 Level, Absolute Values/Modulus, Algebra, Source: Veritas Prep
58Water is pumped into a partially filled tank at a constant Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
59The cost of 10 pounds of apples and 2 pounds of grapes was $1 Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2019
60In the figure above, what is the value of z? Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017
61Is x a negative number? Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10
62What were the gross revenues from ticket sales for a certain Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
63What is the value of t? Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017
64Is 2x > 2y ? Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017
65Does 2x + 8 = 12 ? (1) 2x + 10 = 14 (2) 3x + 8 = 14 Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: Quant Review 2019
66If knz≠0, what is the ratio of k to n? 1) The ratio of k to z is 2 to Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Math Revolution
67A company bought 3 printers and 1 scanner. What was the price of the Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019
68In the terminating decimal equivalent of d, what is the number of nonz Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Number Properties, Source: Other - Please specify
69Three hoses, x, y, and z, each pump water at a constant rate into a 70 Difficulty: Sub-600 Level, Work/Rate Problems, Source: Other - Please specify
70Does nm = 40? Difficulty: Sub-600 Level, Algebra, Source: GMAT Paper Tests
71What is the value of ab + bc ? (1) b = 5 (2) a + c = 8 Difficulty: Sub-600 Level, Algebra, Source: Grockit
72Q is a cube. Find the volume of the cube. Difficulty: Sub-600 Level, Geometry, Source: Magoosh
73In the figure above, segments PQ and PR are each parallel to one of th Difficulty: Sub-600 Level, Coordinate Geometry, Source: GMAT Prep
74Is w + h 4 positive? 1) h is positive 2) w is positive Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017
75If x and y are integers, what is the value of x+y? Difficulty: Sub-600 Level, Arithmetic, Inequalities, Source: GMAT Prep
76A circular tub has a band painted around its circumference Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10
77What is the volume of a certain cube? Difficulty: Sub-600 Level, Geometry, Source: GMAT Prep
78What is the volume of the cube above? Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017
79In a random sample of 80 adults, how many are college Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12
80What is the volume of a certain cube? Difficulty: Sub-600 Level, Geometry
81Is the integer p even? (1) The integer p^2 + 1 is odd. (2) The integer Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: Quant Review 2019
82If machine X ran continuously at a uniform rate to fill Difficulty: Sub-600 Level, Work/Rate Problems
83What is the value of xy ? Difficulty: Sub-600 Level, Algebra, Source: GMAT Hacks
84Machine X runs at a constant rate and produces a lot consist Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
85What was Bill's average speed on his trip of 250 miles from New York Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Manhattan GMAT
86The length of the edging that surrounds circular garden K is Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
87How many different 5-person teams can be formed from a group Difficulty: Sub-600 Level, Combinations
88Is the product of a certain pair of integers even? Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep
89If Sara's age is exactly twice Bill's age, what is Sara's ag Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10
90What is the value of x? (1) |x| = 4. (2) x^2 = 16. Difficulty: Sub-600 Level, Absolute Values/Modulus, Algebra, Source: GMAT Prep EP 1
91Each of the n employees at a certain company has a different annual sa Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2019
92What is the radius of the circle above with center O? Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 10, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2nd
93If i and j are integers, is i + j an even integer? Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
94On a company-sponsored cruise, 2/3 of the passengers were Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
95In PQR, if PQ = x, QR = x + 2, and PR = y, which of the Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11
96In the month of June, a street vendor sold 10% more hot dogs than he Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Other - Please specify
97If on a fishing trip Jim and Tom each caught some fish, which one Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 10
98How long would it take Sue to paint the room? Difficulty: Sub-600 Level, Work/Rate Problems, Source: Other - Please specify
99What is the cube root of w? Difficulty: Sub-600 Level, Roots, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
100If x is positive, what is the value of y ? Difficulty: Sub-600 Level, Algebra, Source: GMAT Prep
101Machines X and Y run simultaneously at their respective Difficulty: Sub-600 Level, Work/Rate Problems
102What is the value of a − b ? Difficulty: Sub-600 Level, Algebra, Source: Princeton Review
103If the sequence S has 300 terms, what is the 293rd term of S Difficulty: Sub-600 Level, Sequences, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
104How many newspapers were sold at a certain newsstand today? Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
105If the Longfellow Playground is rectangular, what is its width? Difficulty: Sub-600 Level, Geometry, Source: Other - Please specify
106The perimeter of a rectangular garden is 360 feet. What is t Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
107Who types at a faster rate, John or Bob? Difficulty: Sub-600 Level, Work/Rate Problems, Source: Economist GMAT Tutor
108What is the average (arithmetic mean) of j and k ? Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10
109If w+ z = 28, what is the value of wz? Difficulty: Sub-600 Level, Algebra, Arithmetic, Source: Official Guide, Source: OG 10, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2nd
110If a certain animated cartoon consists of a total of 17,280 Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10
111What amount did Jean earn from the commission on her sales Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12
112If n is a positive integer, is n odd? Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 10
113Point (x, y) has in which quadrant of the rectangular coordinate syste Difficulty: Sub-600 Level, Coordinate Geometry, Source: Magoosh, Source: OG 10
114A certain investment earned a fixed rate of 4 percent interest per yea Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
115Bob purchased 18 cans of soda, some of which contained diet soda. How Difficulty: Sub-600 Level, Word Problems, Source: Princeton Review
116John took a test that had 60 questions numbered from 1 to 60 Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2017, Source: Quant Review 2nd
117Is z less than 0? Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2nd
118If a is a 3-digit integer and b is a 3-digit integer, is the units Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Inequalities, Number Properties, Source: Official Guide, Source: OG 2019, Source: OG 2018
119In PQR, if PQ = x, QR = x + 2, and PR = y, which of the Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 10
120If n is an integer, is n - 1 even? Difficulty: Sub-600 Level, Number Properties, Source: Grockit
121If a + b + c = 12, what is the value of b? (1) a + b = 8 (2) b + c = 6 Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2019
122On May 1 of last year, Jasmin invested x dollars in a new Difficulty: Sub-600 Level, Percent and Interest Problems, Source: GMAT Prep QP1
123If r and s are integers, is r divisible by 7? Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Number Properties, Source: OG 10
124If the two floors in a certain building are 9 feet apart Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10
125Elena receives a salary plus a commission that is equal to a fixed per Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
126If x ≠ 0, what is the value of (x^p/x^q)^4 ? Difficulty: Sub-600 Level, Algebra, Exponents/Powers, Source: Official Guide, Source: OG 10, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2nd
127What is the value of the integer N? Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017
128How many different carpool possibilities exist for 12 coworkers from Difficulty: Sub-600 Level, Combinations, Source: Other - Please specify
129What is the circumference of circle C ? (1) The radius of circle C is Difficulty: Sub-600 Level, Coordinate Geometry, Geometry, Source: Official Guide, Source: OG 2019
130If S = {2, 3, x, y}, what is the value of x + y? Difficulty: Sub-600 Level, Number Properties
131Is a even? Difficulty: Sub-600 Level, Number Properties
132In Mr. Smith's class, what is the ratio of the number of boy Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
133If 3 years ago Jennifer was 22 years old, how old is Carmen now? Difficulty: Sub-600 Level, Word Problems, Source: Manhattan GMAT
134If u, v, and w are integers, is u > 0 ? Difficulty: Sub-600 Level, Algebra, Source: GMAT Prep
135Is ax = 3 - bx? (1) x(a + b) = 3 (2) a = b = 1.5 and x = 1 Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 11, Source: OG 10
136If l and w represent the length and width, respectively, of Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
137A thoroughly blended biscuit mix includes only flour and bak Difficulty: Sub-600 Level, Mixture Problems, Source: OG 11, Source: OG 10
138If the ratio of a to b is 4 to 3 and the ratio of b to c is 1 to 5.. Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Kaplan
139If M is a set of consecutive even integers, is 0 in set M ? Difficulty: Sub-600 Level, Sequences, Source: Official Guide, Source: Quant Review 2019
140What is the average (arithmetic mean) of the first 90 measurements Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: GMAT Prep EP 1
141A citrus fruit grower receives $15 for each crate of oranges Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12
142On Sunday morning, a printing press printed its newspapers at a consta Difficulty: Sub-600 Level, Work/Rate Problems, Source: Manhattan GMAT
143What is the value of the integer p ? Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Number Properties, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
144In the triangle above, does a^2 + b^2 = c^2 ? Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 10, Source: Quant Review 2017, Source: Quant Review 2nd
145Three houses are being sold through a real estate agent Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
146If Pat saved $600 of his earnings last month, how much did Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12
147For all integers k, the function g is defined by g(k) = ak+4, where a Difficulty: Sub-600 Level, Functions and Custom Characters, Source: Math Revolution
148What is the remainder when the positive integer n is divided Difficulty: Sub-600 Level, Remainders, Source: GMAT Prep
149A jar contains 30 marbles, of which 20 are red and 10 are bl Difficulty: Sub-600 Level, Probability, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd
150Luxo paint contains only alcohol and pigment. What is the ratio of Difficulty: Sub-600 Level, Mixture Problems, Source: Princeton Review

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Collection of Questions:
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DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: 150 Hardest and easiest questions for DS  [#permalink]

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New post 21 Aug 2015, 04:20
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Re: 150 Hardest and easiest questions for DS  [#permalink]

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New post 07 Dec 2015, 08:09
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is there a dump of all these questions rather than click each link?
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Re: 150 Hardest and easiest questions for DS  [#permalink]

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New post 09 Jun 2017, 06:33
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is there a dump of all these questions rather than click each link?
Bunuel IF not can you please make one as Its very time consuming due to technical problem
thanks!!
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New post 29 Jun 2017, 20:33
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This is very helpful. Thank you very much for your efforts. You are doing a great service to those who aspire to ace GMAT. Keep up the good work.

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New post 29 Jun 2017, 20:57
Thanks Buñuel for your efforts.[WHITE SMILING FACE]

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150 Hardest and easiest questions for DS  [#permalink]

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New post 24 Aug 2017, 20:55
Hi Bunuel ,

Thanks for the sharing the list of questions.

Do we anywhere have the option to download all the questions in one go or we have to access them separately only.

Thanks!
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Re: 150 Hardest and easiest questions for DS  [#permalink]

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New post 24 Aug 2017, 20:58
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2201neha wrote:
Hi Bunuel ,

Thanks for the sharing the list of questions.

Do we anywhere have the option to download all the questions in one go or we have to access them separately only.

Thanks!


The list is regularly updated so there is no downloadable file.
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New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: 150 Hardest and easiest questions for DS  [#permalink]

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New post 29 Jan 2018, 22:02
Hi Bunuel
This is extremely helpful, many thanks :)
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Re: 150 Hardest and easiest questions for DS  [#permalink]

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New post 30 May 2018, 08:57
answer choices are not showing. Could anyone let me know to view the answers.
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New post 30 May 2018, 21:47
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Re: 150 Hardest and easiest questions for DS &nbs [#permalink] 30 May 2018, 21:47
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