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150 Hardest and easiest questions for PS

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150 Hardest and easiest questions for PS [#permalink]

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150 Hardest Problem Solving Questions (Mar 1st, 2018 - Apr 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 PS forum.
Problem Solving (PS)
RankTitleTopics
1During the month of April, the average temperatures on day n Difficulty: 700-Level, Absolute Values/Modulus, Arithmetic, Coordinate Geometry, Inequalities, Must or Could be True Questions, Sequences, Word Problems
2In the figure, point D divides side BC of triangle ABC into Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
3The sum of four consecutive odd numbers is equal to the sum Difficulty: 700-Level, Sequences
4If two integers are chosen at random out of the set {2, 5, 7, 8}, what Difficulty: 700-Level, Number Properties, Probability, Source: Manhattan GMAT
5An isosceles triangle with one angle of 120° is inscribed in Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
6If the product of all the unique positive divisors of n, a p Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: Manhattan GMAT
7If [3(ab)^3 + 9(ab)^2 – 54ab] / [(a-1)(a + 2)] = 0, and a and b are bo Difficulty: 700-Level, Algebra, Must or Could be True Questions
8A box contains three pairs of blue gloves and two pairs of Difficulty: 700-Level, Probability, Source: GMAT Club Tests
9Arrow AB which is a line segment exactly 5 units along with Difficulty: 700-Level, Coordinate Geometry, Source: Manhattan GMAT
10Daniel is playing a dice game in which a dice is rolled 5 times Difficulty: 700-Level, Probability, Source: Other - Please specify
11A bus from city M is traveling to city N at a constant speed Difficulty: 700-Level, Distance/Rate Problems, Source: GMAT Club Tests
12The function g(x) is defined for integers x such that if x Difficulty: 700-Level, Algebra, Functions and Custom Characters
13In the x-y plane, point (p, q) is a lattice point if both p Difficulty: 700-Level, Coordinate Geometry, Geometry, Source: Magoosh
14How many even 3 digit integers greater than 700 with Difficulty: 700-Level, Combinations, Source: Official Guide
15If 10! - 2*(5!)^2 is divisible by 10^n, what is the greatest Difficulty: 700-Level, Algebra, Divisibility/Multiples/Factors, Number Properties
16Twenty meters of wire is available to fence off a flower bed in the Difficulty: 700-Level, Geometry, Min/Max Problems, Source: Economist GMAT Tutor
17There are 500 cars on a sales lot, all of which have either two doors Difficulty: 700-Level, Number Properties, Overlapping Sets, Percents and Interest Problems, Source: Magoosh
18A list of numbers has six positive integers. Three of those integers Difficulty: 700-Level, Statistics and Sets Problems, Source: Veritas Prep
19If a, b are integers, and (a-b)^2 + 8b^2=108, what is the number of th Difficulty: 700-Level, Algebra, Source: Math Revolution
20In a certain mathematical activity, we have five cards with five diffe Difficulty: 700-Level, Combinations, Source: Magoosh
21How many numbers that are not divisible by 6 divide evenly Difficulty: 700-Level, Divisibility/Multiples/Factors, Source: Manhattan GMAT
22An integer between 1 and 300, inclusive, is chosen at random Difficulty: 700-Level, Number Properties, Probability, Source: Manhattan GMAT
23A sequence of numbers (geometric sequence) is given by the Difficulty: 700-Level, Absolute Values/Modulus, Exponents/Powers, Sequences, Source: Grockit
24If 2^x + 2^y = x^2 + y^2, where x and y are nonnegative inte Difficulty: 700-Level, Absolute Values/Modulus, Algebra, Min/Max Problems, Source: Manhattan GMAT
25What is the probability of getting a sum of 8 or 14 when Difficulty: 700-Level, Probability
26On a partly cloudy day, Derek decides to walk back from work Difficulty: 700-Level, Distance/Rate Problems, Source: Veritas Prep
27How many values can the integer p=|x+3|-|x-3| assume? Difficulty: 700-Level, Absolute Values/Modulus
28Let a “2-placer” be a terminating decimal, between 0 and 1, for which Difficulty: 700-Level, Fractions/Ratios/Decimals, Number Properties, Source: Manhattan GMAT
29Pipe A can fill a tank in 32 minutes. Pipe B can fill the sa Difficulty: 700-Level, Work/Rate Problems
30An alloy of copper and aluminum has 40% copper. An alloy of Copper and Difficulty: 700-Level, Mixture Problems, Source: Other - Please specify
31A big cube is formed by rearranging the 160 coloured and 56 Difficulty: 700-Level, Geometry, Percents and Interest Problems
32In a certain sequence, every term after the first is determi Difficulty: 700-Level, Sequences, Source: Manhattan GMAT
33How many different pairs of integers (a, b) exist such that 2 <= a <= Difficulty: 700-Level, Algebra, Combinations, Inequalities, Source: Manhattan GMAT
34A botanist selects n^2 trees on an island and studies (2n + Difficulty: 700-Level, Remainders, Source: Princeton Review
35We define f(n) as the highest non-negative integer power of 7 that Difficulty: 700-Level, Divisibility/Multiples/Factors, Exponents/Powers, Functions and Custom Characters
36List T consist of 30 positive decimals, none of which is an Difficulty: 700-Level, Min/Max Problems, Source: Official Guide
37Darcy, Gina, Ray and Susan will be the only participants at a meeting. Difficulty: 700-Level, Probability, Source: Kaplan
38Pam and Robin each roll a pair of fair, six-sided dice. What is the pr Difficulty: 700-Level, Probability, Source: Veritas Prep
39How many integral values of k are possible, if the lines 3x+ Difficulty: 700-Level, Coordinate Geometry
40If a circle passes through points (9,2*sqrt(3)) Difficulty: 700-Level, Coordinate Geometry, Geometry, Source: Other - Please specify
41How many different combinations of outcomes can you make by Difficulty: 700-Level, Combinations
42How many integers less than 100 have exactly 4 odd factors b Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
43Ms. Barton has four children. You are told correctly that sh Difficulty: 700-Level, Probability, Source: GMAT Prep EP1, Source: Manhattan GMAT
44The elevator in an eleven-story office building travels at Difficulty: 700-Level, Distance/Rate Problems
45Set S consists of numbers 2, 3, 6, 48, and 164. Number K is Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Probability
46In the diagram, points A, B, and C are on the diameter of Difficulty: 700-Level, Geometry, Source: Kaplan
47Three men A, B and C working together can do a work in 30 da Difficulty: 700-Level, Work/Rate Problems
48Random Pack 1, Question 3 Three circles with radii... Difficulty: 700-Level, Geometry, Source: EMPOWERgmat
49A trail mix company keeps costs down by employing the peanuts:cashews: Difficulty: 700-Level, Fractions/Ratios/Decimals, Source: Veritas Prep
50A bag contains 3 red and 2 black ball. Another bag contains 4 red and Difficulty: 700-Level, Probability
51The figure above shows gas mileage at different speeds for all compact Difficulty: 700-Level, Distance/Rate Problems, Graphs and Illustrations, Source: Other - Please specify
52Two kinds of Vodka are mixed in the ratio 1:2 and 2:1 and Difficulty: 700-Level, Mixture Problems
53If integer C is randomly selected from 20 to 99, inclusive. Difficulty: 700-Level, Divisibility/Multiples/Factors, Probability, Source: Manhattan GMAT
54Consider a regular polygon of p sides. The number of values Difficulty: 700-Level, Geometry, Number Properties
55How many 4-digit numbers can be formed by using the digits 0 Difficulty: 700-Level, Combinations
56Points A and B are 120 km apart. A motorcyclist starts from Difficulty: 700-Level, Distance/Rate Problems, Geometry, Source: Manhattan GMAT
57If |12x−5|>|7−6x|, which of the following CANNOT be the Difficulty: 700-Level, Absolute Values/Modulus, Inequalities, Source: Veritas Prep
58A customer using a certain telephone calling plan pays a fee Difficulty: 700-Level, Word Problems, Source: Kaplan
59The positive value of x that satisfies the equation (1 + 2x) Difficulty: 700-Level, Algebra, Exponents/Powers, Source: Manhattan GMAT
60A terrible disease sweeps around the world, luckily only affecting 1 Difficulty: 700-Level, Probability, Source: Other - Please specify
61If a and b are distinct integers and a^b = b^a, how many Difficulty: 700-Level, Exponents/Powers, Number Properties, Source: Veritas Prep
62The function p(n) on non-negative integer n is defined in Difficulty: 700-Level, Exponents/Powers, Functions and Custom Characters, Source: Manhattan GMAT
63Bill has a set of 6 black cards and a set of 6 red cards Difficulty: 700-Level, Combinations, Probability, Source: Other - Please specify
64When the number 777 is divided by the integer N, the remaind Difficulty: 700-Level, Remainders, Source: 800 Score
65Louie takes out a three-month loan of $1000. The lender Difficulty: 700-Level, Percents and Interest Problems, Source: Magoosh
66A set of five positive integers has an arithmetic mean of 150. A parti Difficulty: 700-Level, Number Properties, Source: Veritas Prep
67If x and y are integers and 2x + 9y = 57, then the least possible valu Difficulty: 700-Level, Algebra, Source: Veritas Prep
68For positive integers k and n, the k-power remainder of n is defined Difficulty: 700-Level, Min/Max Problems, Number Properties, Remainders, Source: Manhattan GMAT
69A cylindrical tank of radius R and height H must be redesign Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
70A sheet of paper ABDE is a 12-by-18-inch rectangle, as shown in Figure Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
71On the number line shown, the distance between 0 and a . . . Difficulty: 700-Level, Absolute Values/Modulus, Algebra, Source: e-GMAT
72Allen starts from X, goes to Y. At the same time Bob starts from Y and Difficulty: 700-Level, Distance/Rate Problems, Source: Other - Please specify
73A bag contains 10 bulbs and 5 torches, out of which 3 bu Difficulty: 700-Level, Probability, Source: e-GMAT
74If a is the sum of x consecutive positive integers. b is the Difficulty: 700-Level, Statistics and Sets Problems, Source: Manhattan GMAT
75A man arrives at a railway station 90 minutes before the tim Difficulty: 700-Level, Distance/Rate Problems
76What is the sum of all solutions to the equation x^(2x² + 4x – 6) = x Difficulty: 700-Level, Exponents/Powers, Source: GMATPrepNow
77Brian is analyzing the performance of certain stocks. He finds that Difficulty: 700-Level, Statistics and Sets Problems, Word Problems, Source: Princeton Review
78The remainder when N is divided by 18 is 16. Given that N is Difficulty: 700-Level, Remainders
79If y = |x + 5|-|x - 5|, then y can take how many integer Difficulty: 700-Level, Absolute Values/Modulus, Source: GMAT Prep
804 individuals arrive separately at an orchestra concert with Difficulty: 700-Level, Probability, Source: Veritas Prep
81In how many ways can 5 different marbles be distributed in 4 Difficulty: 700-Level, Combinations, Source: GMAT Pill
82Of the three-digit integers greater than 660, how many have Difficulty: 700-Level, Combinations
83An escalator moves downward from street level to a subway platform at Difficulty: 700-Level, Arithmetic, Distance/Rate Problems, Source: Other - Please specify
84How many distinct four-digit numbers can be formed by the Difficulty: 700-Level, Combinations, Source: Magoosh
85In the game of Yahtzee, a "full house" occurs when a player Difficulty: 700-Level, Probability, Source: Veritas Prep
86Baseball's World Series matches 2 teams against each other Difficulty: 700-Level, Probability, Source: Manhattan GMAT
87How many even integers n, where 100 <= n <= 200, are divisib Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
88A fair coin is tossed 6 times. What is the probability of getting no Difficulty: 700-Level, Probability
89At the post office, a letter must go through a sorting process with fo Difficulty: 700-Level, Arithmetic, Fractions/Ratios/Decimals, Word Problems
90Jerry and Jim run a race of 2000 m. First, Jerry gives Jim Difficulty: 700-Level, Distance/Rate Problems, Source: GMAT Paper Tests
91The number 523abc is divisible by 7,8,9. Then what is the Difficulty: 700-Level, Divisibility/Multiples/Factors
92If x is the reciprocal of a positive integer, then the maximum value o Difficulty: 700-Level, Min/Max Problems, Number Properties, Source: Manhattan GMAT
93a, b, c, d are positive integers such that exactly one of Difficulty: 700-Level, Inequalities
94What is the last non-zero digit of expression Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: Other - Please specify
95Suppose x is an integer such that (x^2−x−1)^(x+2)=1 Difficulty: 700-Level, Algebra, Source: Veritas Prep
96Suppose a “Secret Pair” number is a four-digit number in which two adj Difficulty: 700-Level, Combinations, Source: Magoosh
97Set A is composed of nine numbers, labeled A1 through A9. Set B is als Difficulty: 700-Level, Statistics and Sets Problems, Source: Manhattan GMAT
98If xy > 0 and (x − 2)(y + 1) < 0, then which of the following must be Difficulty: 700-Level, Absolute Values/Modulus, Inequalities, Must or Could be True Questions, Source: Veritas Prep
99How many triangles with positive area can be drawn on the Difficulty: 700-Level, Coordinate Geometry, Geometry
100Two different primes may be said to “rhyme” around an integer if they Difficulty: 700-Level, Number Properties, Source: Manhattan GMAT
101Brenda and Sally run in opposite direction on a circular tra Difficulty: 700-Level, Distance/Rate Problems
102For how many different pairs of positive integers (a, b) can Difficulty: 700-Level, Arithmetic, Source: Manhattan GMAT
103How many 3-digit integers between 100 and 200 have a digit Difficulty: 700-Level, Combinations, Source: Kaplan
104|x + 3| = |y -4|, where x and y are non-zer Difficulty: 700-Level, Algebra, Inequalities, Min/Max Problems, Source: e-GMAT
105Pipe A and Pipe B fill water into a tank of capacity 1000 litres at Difficulty: 700-Level, Work/Rate Problems, Source: Other - Please specify
106A cyclist travels the length of a bike path that is 225 Difficulty: 700-Level, Distance/Rate Problems, Inequalities, Source: Manhattan GMAT, Source: PowerPrep
107John works twice as fast as Peter, but John takes a half hour break af Difficulty: 700-Level, Work/Rate Problems, Source: Other - Please specify
108There are 100 freshmen at a particular college, all of whom Difficulty: 700-Level, Overlapping Sets
109Which of the following is/are true? Difficulty: 700-Level, Absolute Values/Modulus, Inequalities
110In a village of 100 households, 75 have at least one DVD player, 80 Difficulty: 700-Level, Overlapping Sets, Source: 800 Score, Source: GMAT Prep
111On planet Simplon, each year has 12 months, each of which Difficulty: 700-Level, Fractions/Ratios/Decimals, Source: Veritas Prep
112A dealer offers a cash discount of 20% and still makes a pro Difficulty: 700-Level, Arithmetic, Percents and Interest Problems
113How many positive integers less than 1000 are multiples of 5 Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
114Of a group of people, 10 play piano, 11 play guitar, 14 play Difficulty: 700-Level, Overlapping Sets, Source: Veritas Prep
115How many different four-letter words can be formed (the words don't Difficulty: 700-Level, Combinations
116Mike started working at 18 and retires at 60. He spent the first 1/5 Difficulty: 700-Level, Fractions/Ratios/Decimals, Source: Other - Please specify
117Matt is touring a nation in which coins are issued in two am Difficulty: 700-Level, Combinations, Source: Veritas Prep
118If m^2 < 225 and n - m = -10, what is the sum f the smallest Difficulty: 700-Level, Inequalities, Min/Max Problems, Source: GMAT Club Tests
119Ben and Shari have invited three other couples to their apar Difficulty: 700-Level, Combinations, Source: Princeton Review
120A certain company plans to sell Product X for p dollars per Difficulty: 700-Level, Probability
121Theresa is a basketball player practicing her free throws. On her fir Difficulty: 700-Level, Fractions/Ratios/Decimals, Probability, Source: Magoosh
122A set of consecutive positive integers beginning with 1 is Difficulty: 700-Level, Statistics and Sets Problems
123Alan’s regular hourly wage is 1.5 times Barney’s regular Difficulty: 700-Level, Number Properties, Source: Manhattan GMAT
124If x is any integer from -6 to 2 inclusive, how many Difficulty: 700-Level, Absolute Values/Modulus, Inequalities, Source: GMATPrepNow
1255 letters have to be put in 5 different envelopes numbered 1 through 5 Difficulty: 700-Level, Probability, Source: Other - Please specify
126Ax(y) is an operation that adds 1 to y Difficulty: 700-Level, Functions and Custom Characters
127A and B are two laborers who have been given the task to build a house Difficulty: 700-Level, Word Problems, Work/Rate Problems, Source: e-GMAT
128How many combinations of three letters taken from letters Difficulty: 700-Level, Combinations
129A cyclist travels the length of a bike path that is 225 Difficulty: 700-Level, Min/Max Problems, Word Problems, Source: Manhattan GMAT
130A not-so-good clockmaker has four clocks on display in the w Difficulty: 700-Level, Distance/Rate Problems, Source: PowerPrep
131How many 2-inch by 3-inch rectangular tiles are required to tile this Difficulty: 700-Level, Geometry, Source: Other - Please specify
132There are three secretaries who work for four departments. Difficulty: 700-Level, Combinations, Probability, Source: Kaplan Advanced
133The workforce of a certain company comprised exactly 10,500 Difficulty: 700-Level, Word Problems
134A circle is inscribed in a square with an area of 121 square Difficulty: 700-Level, Combinations, Geometry, Source: 800 Score
135If x is the smallest positive integer that is not prime and Difficulty: 700-Level, Divisibility/Multiples/Factors, Source: Veritas Prep
136The five sides of a pentagon have lengths of 2, 3, 4, 5 and 6 inches. Difficulty: 700-Level, Combinations, Source: Other - Please specify
137In a game of chess the moves of whites and blacks alternate Difficulty: 700-Level, Word Problems, Source: GMAT Club Tests
138How many positive integers less than 10,000 are there in Difficulty: 700-Level, Combinations, Source: Other - Please specify
139Mira is making telescopes, each consisting of 2 lenses, 1 tu Difficulty: 700-Level, Fractions/Ratios/Decimals, Word Problems, Source: Manhattan GMAT
140A circle is inscribed inside right triangle ABC shown above. What is Difficulty: 700-Level, Geometry, Source: Economist GMAT Tutor
141In the coordinate axis above, line segment AC is three times Difficulty: 700-Level, Coordinate Geometry, Source: Princeton Review
1427 people (A, B, C, D, E, F and G) go to a movie and sit Difficulty: 700-Level, Combinations, Source: Veritas Prep
143If -2 < x <= 5, then which of the following MUST be true? Difficulty: 700-Level, Exponents/Powers, Inequalities, Source: GMATPrepNow
1443 cooks have to make 80 burgers.They are known to make 20 Difficulty: 700-Level, Work/Rate Problems
145In racing over a given distance d at uniform speed, A can be Difficulty: 700-Level, Distance/Rate Problems
146The average score in an examination of 10 students of a class is 60 Difficulty: 700-Level, Min/Max Problems, Statistics and Sets Problems, Word Problems, Source: Other - Please specify
147Teddy has a set of dowels, each with a distinct length in centimeters, Difficulty: 700-Level, Geometry, Source: Magoosh
148If n is an odd natural number and n! ends with 32 zeros, the Difficulty: 700-Level, Number Properties
149If a line which has the equation 7x + 17y = 1000 is plotted on X-Y pla Difficulty: 700-Level, Algebra, Coordinate Geometry, Source: Other - Please specify
150A square wooden plaque has a square brass inlay in the Difficulty: 700-Level, Geometry, Must or Could be True Questions, Source: Official Guide

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

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150 Easiest Problem Solving Questions (Mar 1st, 2018 - Apr 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 PS forum.
Problem Solving (PS)
RankTitleTopics
1For which of the following values of n is (100+n)/n NOT an Difficulty: Sub-600 Level, Arithmetic, Divisibility/Multiples/Factors, Number Properties, Source: Official Guide
2In the equation above, k is a constant. If y = 17 when x = 2 Difficulty: Sub-600 Level, Algebra, Source: Official Guide
3A bakery opened yesterday with its daily supply of 40 dozen Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
4If n is an integer, which of the following must be even? Difficulty: Sub-600 Level, Must or Could be True Questions, Number Properties, Source: Official Guide
5The price of a coat in a certain store is $500. If the price of the co Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
6If it is assumed that 60 percent of those who receive a questionnaire Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
7The ratio 2 to 1/3 is equal to the ratio Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
8Which of the following is equivalent to the pair of Difficulty: Sub-600 Level, Inequalities, Source: Official Guide
9If x = -1, then -(x^4 + x^3 + x^2 + x) = Difficulty: Sub-600 Level, Algebra, Arithmetic, Source: Official Guide
10If 2/(1+2/y)=1, then y = Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
11Rectangular Floors X and Y have equal area. If Floor X is 12 Difficulty: Sub-600 Level, Geometry, Source: Official Guide
12What number when multiplied by 4/7 yields 6/7 as the result? Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
13The number 2 - 0.5 is how many times the number 1 - 0.5? Difficulty: Sub-600 Level, Algebra, Source: Official Guide
14On 3 sales John has received commissions of $240, $80, and $ Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
15150 is what percent of 30 ? Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
16If the population of a certain country increases at the rate Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
17If n is a prime number greater than 3, what is the remainder Difficulty: Sub-600 Level, Remainders, Source: Official Guide
180.1 + 0.1^2 + 0.1^3 = Difficulty: Sub-600 Level, Arithmetic, Exponents/Powers, Source: Official Guide
19If n is a prime number greater than 3, what is the remainder Difficulty: Sub-600 Level, Number Properties, Source: Official Guide
20Kelly and Chris packed several boxes with books. If Chris Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
21In the figure above, the coordinates of point V are Difficulty: Sub-600 Level, Coordinate Geometry, Source: Official Guide
22If m is an integer such that (-2)^2m = 2^{9 - m}, then m= Difficulty: Sub-600 Level, Exponents/Powers, Source: Official Guide
231/(1+1/3)-1/(1+1/2) Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
24As a salesperson, Phyllis can choose one of two methods of a Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
25If Mario was 32 years old 8 years ago, how old was he x year Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
26A fruit-salad mixture consists of apples, peaches, and grape Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
27Of the final grades received by the students in a certain Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
28The ratio of the length to the width of a rectangular advert Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
29For which of the following values of s is (50+s)s an integer? Difficulty: Sub-600 Level, Arithmetic, Number Properties, Source: Veritas Prep
30The amounts of time that three secretaries worked on a Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
31If 3/x = 2 and y/4 = 3, then (3 + y)/(x + 4) = Difficulty: Sub-600 Level, Algebra, Source: Official Guide
32Running at the same rate, 8 identical machines can produce 560 papercl Difficulty: Sub-600 Level, Work/Rate Problems, Source: Magoosh
33A rectangular floor that measures 8 meters by 10 meters is to be cover Difficulty: Sub-600 Level, Geometry, Source: Official Guide
34In the figure above, what is the ratio of the measure of angle B to Difficulty: Sub-600 Level, Geometry, Source: Official Guide
351/3 +1/2 - 5/6 + 1/5 + 1/4 - 9/20 = Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
36(1/5)^2 - 1/5*1/4 = Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Source: Official Guide
37A student's average (arithmetic mean) test score on 4 tests Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide
38In the Johnsons' monthly budget, the dollar amounts allocate Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
39If 3 - x = 2x - 3, then 4x = Difficulty: Sub-600 Level, Algebra, Source: Official Guide
40If x is negative and y is positive, which of the following must be Difficulty: Sub-600 Level, Number Properties, Source: Princeton Review
41What is the value of x^2yz − xyz^2, if x = − 2, y = 1, and z = 3? Difficulty: Sub-600 Level, Algebra, Source: Official Guide
42Running at the same constant rate, 6 identical machines can Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide
43Root(80)+root(125) Difficulty: Sub-600 Level, Roots, Source: Official Guide
44If O is the center of the circle above, what fraction of the Difficulty: Sub-600 Level, Geometry, Source: Official Guide
45If s > 0 and (r/s)^1/2=s, what what is r in terms of s ? Difficulty: Sub-600 Level, Algebra, Source: Official Guide
461/(3-1/(3-1/(3-1)))= Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Source: Official Guide
47Eight identical machines can produce 360 aluminum cans per Difficulty: Sub-600 Level, Work/Rate Problems, Source: Princeton Review
48A rectangular garden is to be twice as long as it is wide. Difficulty: Sub-600 Level, Geometry, Source: Official Guide
49A gym class can be divided into 8 teams with an equal number Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Source: Official Guide
50(2+2*6^1/2)/2 Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Roots, Source: Official Guide
51Three business partners, Q, R, and S, agree to divide their Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Word Problems, Source: Official Guide
52A technician makes a round-trip to and from a certain service center b Difficulty: Sub-600 Level, Percents and Interest Problems, Word Problems, Source: Official Guide
53John is traveling to a meeting that is 28 miles away. He nee Difficulty: Sub-600 Level, Distance/Rate Problems
541/(0.75-1)= Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Source: Official Guide
55If Sally can paint a house in 4 hours, and John can paint Difficulty: Sub-600 Level, Work/Rate Problems
56If p/q < 1, and p and q are positive integers, which of the Difficulty: Sub-600 Level, Inequalities, Must or Could be True Questions, Source: Official Guide
57(1+5^1/2)(1-5^1/2)= Difficulty: Sub-600 Level, Algebra, Arithmetic, Source: Official Guide
58If the figure provided is drawn to scale, which of the following point Difficulty: Sub-600 Level, Absolute Values/Modulus, Source: Grockit
59If f(x)=3x−√x and g(x)=x^2, what is f(g(4))? Difficulty: Sub-600 Level, Algebra, Functions and Custom Characters, Source: GMAT Club Tests
60If f(x)= 5x^3- 2x+8 and g(y)= 6y-4, then g(f(x)) = Difficulty: Sub-600 Level, Algebra, Functions and Custom Characters, Source: 800 Score
61A certain builder is selling five homes for the following Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: GMAT Prep
62Of the five coordinates associated with points A, B, C, D Difficulty: Sub-600 Level, Absolute Values/Modulus, Coordinate Geometry, Source: Official Guide
63If x is an even integer, which of the following is an odd integer? Difficulty: Sub-600 Level, Number Properties, Source: Other - Please specify
64If y((3x-5)/2) =y and y#0, then x = Difficulty: Sub-600 Level, Algebra, Source: Official Guide
65|-4| (|-20|-|5|)= ? Difficulty: Sub-600 Level, Absolute Values/Modulus, Arithmetic
66If x/4 is 2 more than x/8, then x = Difficulty: Sub-600 Level, Algebra, Source: Official Guide
67A glucose solution contains 15 grams of glucose per 100 Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
68If the median of the numbers in list I above is equal to the Difficulty: Sub-600 Level, Must or Could be True Questions, Statistics and Sets Problems, Source: Official Guide
69The product X of two prime numbers is between 17 and 55. If Difficulty: Sub-600 Level, Number Properties, Source: GMAT Pill
70(2 3/5 - 1 2/3)/(2/3 - 3/5) Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
71If x + 5 > 2 and x - 3 < 7, the value of x must be between Difficulty: Sub-600 Level, Inequalities, Source: Official Guide
72If (-5)^(4x) = 5^(9 + x) and x is an integer, what is the value of x ? Difficulty: Sub-600 Level, Exponents/Powers, Source: Grockit
73What is 3/5 of 5/8 of 2/3? Difficulty: Sub-600 Level, Arithmetic, Source: Manhattan GMAT
74The price of a certain television set is discounted by 10 pe Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
75If 60 percent of a rectangular floor is covered by a rectang Difficulty: Sub-600 Level, Arithmetic, Geometry, Source: Official Guide
76In a shipment of 120 machine parts, 5 percent were defective Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
77A project scheduled to be carried out over a single fiscal Difficulty: Sub-600 Level, Word Problems, Source: 800 Score, Source: Official Guide
78In the xy-plane, what is the slope of the line with equation Difficulty: Sub-600 Level, Coordinate Geometry, Source: Official Guide
79In the rectangular coordinate system above, if point R (not Difficulty: Sub-600 Level, Coordinate Geometry, Geometry, Source: Official Guide
80Two years ago, Sam put $1,000 into a savings account. Difficulty: Sub-600 Level, Percents and Interest Problems
81If n is the product of the integers from 1 to 8, inclusive Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Number Properties, Source: Official Guide
82In Country X a returning tourist may import goods with a tot Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
83If x and y are odd integers, which of the following must always be a Difficulty: Sub-600 Level, Number Properties, Source: Other - Please specify
84The sum 7/8+1/9 is between Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Source: Official Guide
85If a mixture is 3⁄7 alcohol by volume and 4⁄7 water by volume, what is Difficulty: Sub-600 Level, Mixture Problems, Source: Official Guide
86If Jake loses 8 pounds, he will weigh twice as much as his Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
87The figure above shows a circular flower bed, with its cente Difficulty: Sub-600 Level, Geometry, Source: Official Guide
88If n is a positive integer and k + 2 = 3^n, which of the fol Difficulty: Sub-600 Level, Algebra, Source: Official Guide
89A rope 40 feet long is cut into two pieces. If one piece is Difficulty: Sub-600 Level, Arithmetic, Source: 800 Score, Source: Official Guide
90Sixty percent of the members of a study group are women, and Difficulty: Sub-600 Level, Probability, Source: Official Guide
91A committee is composed of w women and m men. If 3 women and Difficulty: Sub-600 Level, Probability, Source: Official Guide
92The figure above shows a path around a triangular piece of land. Mary Difficulty: Sub-600 Level, Geometry, Source: Official Guide
93For what value of x, is |x – 3| + |x + 1| + |x| = 10? Difficulty: Sub-600 Level, Absolute Values/Modulus, Source: Economist GMAT Tutor, Source: Veritas Prep
94In the figure above, the sum of the three numbers in the hor Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
95If |a| = 1/3 and |b| = 2/3, which of the following CANNOT be the resul Difficulty: Sub-600 Level, Absolute Values/Modulus, Arithmetic, Source: Manhattan GMAT
96If 1 + 1/x = 2 - 2/x, then x = Difficulty: Sub-600 Level, Algebra, Source: Official Guide
97Which of the following must be equal to zero for all real nu Difficulty: Sub-600 Level, Must or Could be True Questions, Number Properties, Source: Official Guide
98Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floo Difficulty: Sub-600 Level, Algebra, Source: Official Guide
99The sum of prime numbers that are greater than 60 but less Difficulty: Sub-600 Level, Number Properties, Source: Official Guide
100If k^2 = m^2, which of the following must be true? Difficulty: Sub-600 Level, Absolute Values/Modulus, Source: Official Guide
101In Township K each property is taxed at 8 percent of its assessed Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Other - Please specify
102If x + y = 7 and x – y = 3, then x^2 - y^2 = Difficulty: Sub-600 Level, Algebra, Source: Manhattan GMAT
103Company C produces toy trucks at a cost of $5.00 each for the first 10 Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
1041-(1/2-2/3)= Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: Princeton Review
105When p is divided by 9, the remainder is 4. All of the following are Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Remainders, Source: Other - Please specify
106If 105 divides into n with no remainder, which of the following must Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Remainders, Source: Other - Please specify
107If x<0, which of the following represents a positive number? Difficulty: Sub-600 Level, Absolute Values/Modulus, Source: GMAT Prep EP2
108The sum of the weekly salaries of 5 employees is $3,250. If each of th Difficulty: Sub-600 Level, Percents and Interest Problems, Statistics and Sets Problems, Source: Official Guide
109Thirty percent of the members of a swim club have passed the Difficulty: Sub-600 Level, Percents and Interest Problems, Word Problems, Source: Official Guide
110Jim travels the first 3 hours of his journey at 60 mph speed and the Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Other - Please specify
111John has 10 pairs of matched socks. If he loses 7 individual Difficulty: Sub-600 Level, Min/Max Problems, Source: Official Guide
112The value of -3-(-10) is how much greater than the value of Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
113An artist wishes to paint a circular region on a square post Difficulty: Sub-600 Level, Geometry, Source: Official Guide
114Which of the following equations is NOT equivalent to 4x^2 = y^2 - 9 ? Difficulty: Sub-600 Level, Algebra, Source: GMAT Prep
115If 893 × 78 = p, which of the following is equal to 893 × 79? Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
116If the average (arithmetic mean) of x + 2, x + 4, and x + 6 is 0 Difficulty: Sub-600 Level, Arithmetic, Source: Grockit
117If x > 7, which of the following is equal to (x^2 + 8x + 16)/(x^2 - 16 Difficulty: Sub-600 Level, Algebra, Source: Kaplan
118During a two-week period, the price of an ounce of silver in Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
119What is the value of 10^8 - 6^7? Difficulty: Sub-600 Level, Arithmetic, Source: Veritas Prep
120If the remainder is 7 when positive integer n is divided by Difficulty: Sub-600 Level, Remainders, Source: GMAT Paper Tests
121In the figure above, if F is a point on the line that bisects angle AC Difficulty: Sub-600 Level, Geometry, Source: Official Guide
122At the opening of a trading day at a certain stock exchange, the price Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
123A grocer has 400 pounds of coffee in stock, 20 percent Difficulty: Sub-600 Level, Mixture Problems, Source: Official Guide
124On a vacation,Rose exchanged $500.00 for euros at an exchange rate Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
125If Henry were to add 5 gallons of water to a tank that is Difficulty: Sub-600 Level, Mixture Problems
126If x + y= 8z, then which of the following represents the ave Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide
127A student committee that must consists of 5 members is to be formed Difficulty: Sub-600 Level, Combinations, Source: Manhattan GMAT
128If y = 2 + 2K and y#0, then 1/y + 1/y + 1/y + 1/y = ? Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep EP1
129If |a+b|=|a-b|, then a*b must be equal to: Difficulty: Sub-600 Level, Absolute Values/Modulus, Algebra, Source: Kaplan
130The annual budget of a certain college is to be shown on a c Difficulty: Sub-600 Level, Geometry, Source: Official Guide
131(16 + 16)^1/2 = Difficulty: Sub-600 Level, Algebra, Roots, Source: Official Guide
132If the length of an edge of cube X is twice the length of an Difficulty: Sub-600 Level, Geometry, Source: Official Guide
133Last week Chris earned x dollars per hour for the first 40 hours worke Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
134The average (arithmetic mean) of 6 numbers is 8.5. When one Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide
135After 4,000 gallons of water were added to a large water tan Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Word Problems, Source: Official Guide
136If a basketball team scores an average (arithmetic mean) of x points Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide
137Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
138ABCD is a parallelogram. BD = 2. The angles of triangle BCD are all eq Difficulty: Sub-600 Level, Geometry, Source: Other - Please specify
139Of the following, which is least? Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide
140If a quality control check is made inspecting a sample of 2 Difficulty: Sub-600 Level, Combinations, Source: GMAT Prep
141Arithmetic mean and standard deviation of a certain normal Difficulty: Sub-600 Level, Statistics and Sets Problems
142When Leo imported a certain item, he paid a 7 percent import Difficulty: Sub-600 Level, Percents and Interest Problems, Source: Official Guide
143The maximum recommended pulse rate R, when exercising, for a Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
144If x = 1- 3t and y = 2t - 1, then for what value of t does x Difficulty: Sub-600 Level, Algebra, Source: Official Guide
145Today Rebecca, who is 34 years old, and her daughter, who is 8 years Difficulty: Sub-600 Level, Word Problems, Source: Official Guide
146Which of the following represent positive numbers? Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide
147If d is the standard deviation x, y, and z, what is the stan Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: GMAT Prep
148A certain rectangular window is twice as long as it is wide. Difficulty: Sub-600 Level, Geometry, Source: Official Guide
149If xyz < 0 and yz > 0, which of the following must be positi Difficulty: Sub-600 Level, Inequalities, Must or Could be True Questions
150In the coordinate plane, what is the distance between points (3, 5) an Difficulty: Sub-600 Level, Coordinate Geometry, Source: Veritas Prep

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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 PS [#permalink]

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New post 21 Aug 2015, 05:20
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Re: 150 Hardest and easiest questions for PS [#permalink]

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I can easily get every question out of the sub 600 list but honestly have no clue how to even approach the 700+ list. Are there questions that fall in-between?
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Re: 150 Hardest and easiest questions for PS [#permalink]

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hffballer wrote:
I can easily get every question out of the sub 600 list but honestly have no clue how to even approach the 700+ list. Are there questions that fall in-between?


Check our Questions Bank, where you can find 600-700 level questions. Also, visit our Search Page to filter questions by various categories.

Hope it helps.
_________________

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.


What are GMAT Club Tests?
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Re: 150 Hardest and easiest questions for PS [#permalink]

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New post 20 May 2016, 07:55
Bunuel wrote:
hffballer wrote:
I can easily get every question out of the sub 600 list but honestly have no clue how to even approach the 700+ list. Are there questions that fall in-between?


Check our Questions Bank, where you can find 600-700 level questions. Also, visit our Search Page to filter questions by various categories.

Hope it helps.


thanks a lot Brunuel. One more question. If i'm aiming for 80th percentile in Quant would i have to get a lot of these questions in your 700 bucket above correct? Want to know if i'm really far away from my target or just getting intimidated by 750+ level questions.

Thanks again.
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Re: 150 Hardest and easiest questions for PS [#permalink]

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New post 10 Sep 2016, 09:42
can anyone help me answer this question?

a nickel, a dime and 2 identical quarters are arranged along a side of a table. if the quarters and dime must face heads up, while nickel can face heads up or tails up, how many different arrangemnts of the coins are possible?


what level question is this?
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Re: 150 Hardest and easiest questions for PS [#permalink]

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geetgmat wrote:
can anyone help me answer this question?

a nickel, a dime and 2 identical quarters are arranged along a side of a table. if the quarters and dime must face heads up, while nickel can face heads up or tails up, how many different arrangemnts of the coins are possible?


what level question is this?


Discussed here: a-nickel-a-dime-and-2-identical-quarters-are-arranged-59417.html

PLEASE READ AND FOLLOW: rules-for-posting-please-read-this-before-posting-133935.html
_________________

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 PS [#permalink]

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New post 07 Mar 2018, 23:18
700+ questions a different ball game all together. The more I practice the more it dawns on me that you have to get these 700+ consistently correct to be able to cross the 44 mark in quant.

A long way to go... but thanks for the compilation Bunuel!
Re: 150 Hardest and easiest questions for PS   [#permalink] 07 Mar 2018, 23:18
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