150 Hardest Problem Solving Questions (Jul 1st, 2018 - Aug 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)
Rank	Title	Topics
1	During 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
2	In the figure, point D divides side BC of triangle ABC into segments	Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
3	An isosceles triangle with one angle of 120° is inscribed in	Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
4	If two integers are chosen at random out of the set {2, 5, 7, 8}, what	Difficulty: 700-Level, Number Properties, Probability, Source: Manhattan GMAT
5	The sum of four consecutive odd numbers is equal to the sum	Difficulty: 700-Level, Sequences
6	If the product of all the unique positive divisors of n, a p	Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: Manhattan GMAT
7	Arrow AB which is a line segment exactly 5 units along with	Difficulty: 700-Level, Coordinate Geometry, Source: Manhattan GMAT
8	If [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
9	A bus from city M is traveling to city N at a constant speed	Difficulty: 700-Level, Distance/Rate Problems, Source: GMAT Club Tests
10	Daniel is playing a dice game in which a dice is rolled 5 times	Difficulty: 700-Level, Probability, Source: Other - Please specify
11	A box contains three pairs of blue gloves and two pairs of	Difficulty: 700-Level, Probability, Source: GMAT Club Tests
12	In the x-y plane, point (p, q) is a lattice point if both p	Difficulty: 700-Level, Coordinate Geometry, Geometry, Source: Magoosh
13	The function g(x) is defined for integers x such that if x	Difficulty: 700-Level, Algebra, Functions and Custom Characters
14	If 10! - 2*(5!)^2 is divisible by 10^n, what is the greatest	Difficulty: 700-Level, Algebra, Divisibility/Multiples/Factors, Number Properties
15	A list of numbers has six positive integers. Three of those integers	Difficulty: 700-Level, Statistics and Sets Problems, Source: Veritas Prep
16	Twenty meters of wire is available to fence off a flower bed in the	Difficulty: 700-Level, Geometry, Min/Max Problems, Source: Economist GMAT Tutor
17	How many even 3 digit integers greater than 700 with distinct non zero	Difficulty: 700-Level, Combinations, Source: Official Guide
18	An integer between 1 and 300, inclusive, is chosen at random	Difficulty: 700-Level, Number Properties, Probability, Source: Manhattan GMAT
19	In a certain mathematical activity, we have five cards with five diffe	Difficulty: 700-Level, Combinations, Source: Magoosh
20	A sequence of numbers (geometric sequence) is given by the	Difficulty: 700-Level, Absolute Values/Modulus, Exponents/Powers, Sequences, Source: Grockit
21	There 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
22	On a partly cloudy day, Derek decides to walk back from work	Difficulty: 700-Level, Distance/Rate Problems, Source: Veritas Prep
23	An alloy of copper and aluminum has 40% copper. An alloy of Copper and	Difficulty: 700-Level, Mixture Problems, Source: Other - Please specify
24	What is the probability of getting a sum of 8 or 14 when	Difficulty: 700-Level, Probability
25	How many values can the integer p=|x+3|-|x-3| assume?	Difficulty: 700-Level, Absolute Values/Modulus
26	Pam and Robin each roll a pair of fair, six-sided dice. What is the pr	Difficulty: 700-Level, Probability, Source: Veritas Prep
27	If 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
28	How many numbers that are not divisible by 6 divide evenly	Difficulty: 700-Level, Divisibility/Multiples/Factors, Source: Manhattan GMAT
29	How many integral values of k are possible, if the lines 3x+	Difficulty: 700-Level, Coordinate Geometry
30	How many 4-digit numbers can be formed by using the digits 0	Difficulty: 700-Level, Combinations
31	If a, b are integers, and (a-b)^2 + 8b^2=108, what is the number of th	Difficulty: 700-Level, Algebra, Source: Math Revolution
32	In a certain sequence, every term after the first is determi	Difficulty: 700-Level, Sequences, Source: Manhattan GMAT
33	How many different combinations of outcomes can you make by	Difficulty: 700-Level, Combinations
34	A botanist selects n^2 trees on an island and studies (2n +	Difficulty: 700-Level, Remainders, Source: Princeton Review
35	Let a “2-placer” be a terminating decimal, between 0 and 1, for which	Difficulty: 700-Level, Combinations, Fractions/Ratios/Decimals, Number Properties, Source: Manhattan GMAT
36	We 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
37	List T consist of 30 positive decimals, none of which is an integer	Difficulty: 700-Level, Min/Max Problems, Source: Official Guide
38	A big cube is formed by rearranging the 160 coloured and 56	Difficulty: 700-Level, Geometry, Percents and Interest Problems
39	If a circle passes through points (9,2*sqrt(3))	Difficulty: 700-Level, Coordinate Geometry, Geometry, Source: Other - Please specify
40	How many integers less than 100 have exactly 4 odd factors b	Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
41	How many different pairs of integers (a, b) exist such that 2 <= a <=	Difficulty: 700-Level, Algebra, Combinations, Inequalities, Source: Manhattan GMAT
42	Ms. Barton has four children. You are told correctly that she has at	Difficulty: 700-Level, Probability, Source: GMAT Prep EP1, Source: Manhattan GMAT
43	Darcy, Gina, Ray and Susan will be the only participants at a meeting.	Difficulty: 700-Level, Probability, Source: Kaplan
44	Pipe A can fill a tank in 32 minutes. Pipe B can fill the sa	Difficulty: 700-Level, Work/Rate Problems
45	The figure above shows gas mileage at different speeds for all compact	Difficulty: 700-Level, Distance/Rate Problems, Graphs and Illustrations, Source: Other - Please specify
46	The elevator in an eleven-story office building travels at	Difficulty: 700-Level, Distance/Rate Problems
47	Random Pack 1, Question 3 Three circles with radii...	Difficulty: 700-Level, Geometry, Source: EMPOWERgmat
48	Set S consists of numbers 2, 3, 6, 48, and 164. Number K is	Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Probability
49	Two kinds of Vodka are mixed in the ratio 1:2 and 2:1 and	Difficulty: 700-Level, Mixture Problems
50	In the diagram, points A, B, and C are on the diameter of	Difficulty: 700-Level, Geometry, Source: Kaplan
51	What is the sum of all solutions to the equation x^(2x² + 4x – 6) = x	Difficulty: 700-Level, Exponents/Powers, Source: GMATPrepNow
52	How many 2-inch by 3-inch rectangular tiles are required to tile this	Difficulty: 700-Level, Geometry, Source: Other - Please specify
53	If x is the reciprocal of a positive integer, then the maximum value o	Difficulty: 700-Level, Min/Max Problems, Number Properties, Source: Manhattan GMAT
54	A cylindrical tank of radius R and height H must be redesign	Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
55	Points A and B are 120 km apart. A motorcyclist starts from	Difficulty: 700-Level, Distance/Rate Problems, Geometry, Source: Manhattan GMAT
56	If |12x−5|>|7−6x|, which of the following CANNOT be the	Difficulty: 700-Level, Absolute Values/Modulus, Inequalities, Source: Veritas Prep
57	A set of five positive integers has an arithmetic mean of 150. A parti	Difficulty: 700-Level, Number Properties, Source: Veritas Prep
58	Consider a regular polygon of p sides. The number of values	Difficulty: 700-Level, Geometry, Number Properties
59	For 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
60	On the number line shown, the distance between 0 and a . . .	Difficulty: 700-Level, Absolute Values/Modulus, Algebra, Source: e-GMAT
61	A customer using a certain telephone calling plan pays a fee	Difficulty: 700-Level, Word Problems, Source: Kaplan
62	Louie takes out a three-month loan of $1000. The lender	Difficulty: 700-Level, Percents and Interest Problems, Source: Magoosh
63	A bag contains 3 red and 2 black ball. Another bag contains 4 red and	Difficulty: 700-Level, Probability
64	If x and y are integers and 2x + 9y = 57, then the least possible valu	Difficulty: 700-Level, Algebra, Source: Veritas Prep
65	A sheet of paper ABDE is a 12-by-18-inch rectangle, as shown in Figure	Difficulty: 700-Level, Geometry, Source: Manhattan GMAT
66	Allen 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
67	The remainder when N is divided by 18 is 16. Given that N is	Difficulty: 700-Level, Remainders
68	Three men A, B and C working together can do a work in 30 da	Difficulty: 700-Level, Work/Rate Problems
69	An escalator moves downward from street level to a subway platform at	Difficulty: 700-Level, Arithmetic, Distance/Rate Problems, Source: Other - Please specify
70	If 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
71	Two different primes may be said to “rhyme” around an integer if they	Difficulty: 700-Level, Number Properties, Source: Manhattan GMAT
72	The positive value of x that satisfies the equation (1 + 2x)	Difficulty: 700-Level, Algebra, Exponents/Powers, Source: Manhattan GMAT
73	If a is the sum of x consecutive positive integers. b is the	Difficulty: 700-Level, Statistics and Sets Problems, Source: Manhattan GMAT
74	It takes 6 days for 3 women and 2 men working together to	Difficulty: 700-Level, Work/Rate Problems, Source: 800 Score
75	When the number 777 is divided by the integer N, the remaind	Difficulty: 700-Level, Remainders, Source: 800 Score
76	If integer C is randomly selected from 20 to 99, inclusive.	Difficulty: 700-Level, Divisibility/Multiples/Factors, Probability, Source: Manhattan GMAT
77	A fair coin is tossed 6 times. What is the probability of getting no	Difficulty: 700-Level, Probability
78	A bag contains 10 bulbs and 5 torches, out of which 3 bu	Difficulty: 700-Level, Probability, Source: e-GMAT
79	4 individuals arrive separately at an orchestra concert with	Difficulty: 700-Level, Probability, Source: Veritas Prep
80	The function p(n) on non-negative integer n is defined in	Difficulty: 700-Level, Exponents/Powers, Functions and Custom Characters, Source: Manhattan GMAT
81	How many even integers n, where 100 <= n <= 200, are divisib	Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
82	A certain company plans to sell Product X for p dollars per	Difficulty: 700-Level, Probability
83	If a and b are distinct integers and a^b = b^a, how many	Difficulty: 700-Level, Exponents/Powers, Number Properties, Source: Veritas Prep
84	A mixed doubles tennis game is to be played between two team	Difficulty: 700-Level, Combinations
85	a, b, c, d are positive integers such that exactly one of	Difficulty: 700-Level, Inequalities
86	The number 523abc is divisible by 7,8,9. Then what is the	Difficulty: 700-Level, Divisibility/Multiples/Factors
87	A man arrives at a railway station 90 minutes before the tim	Difficulty: 700-Level, Distance/Rate Problems
88	What is the last non-zero digit of expression	Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties, Source: Other - Please specify
89	If y = |x + 5|-|x - 5|, then y can take how many integer	Difficulty: 700-Level, Absolute Values/Modulus, Source: GMAT Prep
90	Jerry and Jim run a race of 2000 m. First, Jerry gives Jim	Difficulty: 700-Level, Distance/Rate Problems, Source: GMAT Paper Tests
91	Baseball's World Series matches 2 teams against each other	Difficulty: 700-Level, Probability, Source: Manhattan GMAT
92	How many 3-digit integers between 100 and 200 have a digit	Difficulty: 700-Level, Combinations, Source: Kaplan
93	Of the three-digit integers greater than 660, how many have	Difficulty: 700-Level, Combinations
94	In the game of Yahtzee, a "full house" occurs when a player	Difficulty: 700-Level, Probability, Source: Veritas Prep
95	How many distinct four-digit numbers can be formed by the	Difficulty: 700-Level, Combinations, Source: Magoosh
96	On planet Simplon, each year has 12 months, each of which	Difficulty: 700-Level, Fractions/Ratios/Decimals, Source: Veritas Prep
97	A not-so-good clockmaker has four clocks on display in the w	Difficulty: 700-Level, Distance/Rate Problems, Source: PowerPrep
98	13 students in a class had a medium score 10 and an average score of	Difficulty: 700-Level, Statistics and Sets Problems, Source: Other - Please specify
99	Suppose x is an integer such that (x^2−x−1)^(x+2)=1	Difficulty: 700-Level, Algebra, Source: Veritas Prep
100	How many triangles with positive area can be drawn on the	Difficulty: 700-Level, Coordinate Geometry, Geometry
101	A cyclist travels the length of a bike path that is 225	Difficulty: 700-Level, Distance/Rate Problems, Inequalities, Source: Manhattan GMAT, Source: PowerPrep
102	Ben and Shari have invited three other couples to their apar	Difficulty: 700-Level, Combinations, Source: Princeton Review
103	In the coordinate axis above, line segment AC is three times	Difficulty: 700-Level, Coordinate Geometry, Source: Princeton Review
104	Set A is composed of nine numbers, labeled A1 through A9. Set B is als	Difficulty: 700-Level, Statistics and Sets Problems, Source: Manhattan GMAT
105	John works twice as fast as Peter, but John takes a half hour break af	Difficulty: 700-Level, Work/Rate Problems, Source: Other - Please specify
106	If m^2 < 225 and n - m = -10, what is the sum f the smallest	Difficulty: 700-Level, Algebra, Inequalities, Min/Max Problems, Source: GMAT Club Tests
107	In a village of 100 households, 75 have at least one DVD player, 80	Difficulty: 700-Level, Overlapping Sets, Source: 800 Score, Source: GMAT Prep
108	Brenda and Sally run in opposite direction on a circular tra	Difficulty: 700-Level, Distance/Rate Problems
109	Brian is analyzing the performance of certain stocks. He finds that	Difficulty: 700-Level, Statistics and Sets Problems, Word Problems, Source: Princeton Review
110	A terrible disease sweeps around the world, luckily only affecting 1	Difficulty: 700-Level, Probability, Source: Other - Please specify
111	The workforce of a certain company comprised exactly 10,500	Difficulty: 700-Level, Word Problems
112	There are 100 freshmen at a particular college, all of whom	Difficulty: 700-Level, Overlapping Sets
113	In how many ways can 5 different marbles be distributed in 4	Difficulty: 700-Level, Combinations, Source: GMAT Pill
114	Pipe A and Pipe B fill water into a tank of capacity 1000 litres at	Difficulty: 700-Level, Work/Rate Problems, Source: Other - Please specify
115	Three pipes – A, B, and C – are attached to a tank. Pipe A alone can	Difficulty: 700-Level, Word Problems, Work/Rate Problems, Source: e-GMAT
116	5 letters have to be put in 5 different envelopes numbered 1 through 5	Difficulty: 700-Level, Probability, Source: Other - Please specify
117	How many different four-letter words can be formed (the words don't	Difficulty: 700-Level, Combinations
118	Of a group of people, 10 play piano, 11 play guitar, 14 play	Difficulty: 700-Level, Overlapping Sets, Source: Veritas Prep
119	An ambulance, an hour after starting, meets with an accident which....	Difficulty: 700-Level, Distance/Rate Problems, Word Problems, Source: Other - Please specify
120	How many positive integers less than 1000 are multiples of 5	Difficulty: 700-Level, Divisibility/Multiples/Factors, Number Properties
121	Which of the following is/are true?	Difficulty: 700-Level, Absolute Values/Modulus, Inequalities
122	At the post office, a letter must go through a sorting process with fo	Difficulty: 700-Level, Arithmetic, Fractions/Ratios/Decimals, Word Problems
123	Theresa is a basketball player practicing her free throws. On her fir	Difficulty: 700-Level, Fractions/Ratios/Decimals, Probability, Source: Magoosh
124	Given that a, b, c, and d are different nonzero digits and that 10d +	Difficulty: 700-Level, Arithmetic, Must or Could be True Questions, Source: Kaplan
125	A list of numbers has six positive integers. Three of those integers	Difficulty: 700-Level, Number Properties, Source: Veritas Prep
126	Suppose a “Secret Pair” number is a four-digit number in which two adj	Difficulty: 700-Level, Combinations, Source: Magoosh
127	Alan’s regular hourly wage is 1.5 times Barney’s regular	Difficulty: 700-Level, Number Properties, Source: Manhattan GMAT
128	Matt is touring a nation in which coins are issued in two am	Difficulty: 700-Level, Combinations, Source: Veritas Prep
129	A set of 13 integers has a median of 10 and an average of 15.	Difficulty: 700-Level, Statistics and Sets Problems, Source: Other - Please specify
130	If x is any integer from -6 to 2 inclusive, how many	Difficulty: 700-Level, Absolute Values/Modulus, Inequalities, Source: GMATPrepNow
131	Bill has a set of 6 black cards and a set of 6 red cards	Difficulty: 700-Level, Combinations, Probability, Source: Other - Please specify
132	A set of consecutive positive integers beginning with 1 is	Difficulty: 700-Level, Statistics and Sets Problems
133	Mira is making telescopes, each consisting of 2 lenses, 1 tu	Difficulty: 700-Level, Fractions/Ratios/Decimals, Word Problems, Source: Manhattan GMAT
134	How many combinations of three letters taken from letters	Difficulty: 700-Level, Combinations
135	Jane gave Karen a 5 m head start in a 100 race and Jane was	Difficulty: 700-Level, Distance/Rate Problems
136	A cyclist travels the length of a bike path that is 225	Difficulty: 700-Level, Min/Max Problems, Word Problems, Source: Manhattan GMAT
137	In a game of chess the moves of whites and blacks alternate	Difficulty: 700-Level, Word Problems, Source: GMAT Club Tests
138	How many positive integers less than 10,000 are there in	Difficulty: 700-Level, Combinations, Source: Other - Please specify
139	Ax(y) is an operation that adds 1 to y	Difficulty: 700-Level, Functions and Custom Characters
140	Bill and Jane play a simple game involving two fair dice, each of	Difficulty: 700-Level, Probability, Source: Manhattan GMAT
141	For how many unique pairs of nonnegative integers {a, b} is the equati	Difficulty: 700-Level, Algebra, Source: Manhattan GMAT
142	A dealer offers a cash discount of 20% and still makes a pro	Difficulty: 700-Level, Arithmetic, Percents and Interest Problems
143	If x is the smallest positive integer that is not prime and	Difficulty: 700-Level, Divisibility/Multiples/Factors, Source: Veritas Prep
144	For how many different pairs of positive integers (a, b) can	Difficulty: 700-Level, Arithmetic, Source: Manhattan GMAT
145	Bonds rated B have a 25% chance of default in five years. Bonds rated	Difficulty: 700-Level, Probability, Source: Other - Please specify
146	An ant is clinging to one corner of a box in the shape of a	Difficulty: 700-Level, Combinations, Source: Manhattan GMAT
147	The price of a bushel of corn is currently $3.20, and the price of a	Difficulty: 700-Level, Word Problems
148	A square wooden plaque has a square brass inlay in the	Difficulty: 700-Level, Geometry, Must or Could be True Questions, Source: Official Guide
149	At a local beach, the ratio of little dogs to average dogs	Difficulty: 700-Level, Fractions/Ratios/Decimals, Percents and Interest Problems, Source: Veritas Prep
150	7 people (A, B, C, D, E, F and G) go to a movie and sit	Difficulty: 700-Level, Combinations, Source: Veritas Prep

_________________

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?
Extra-hard Quant Tests with Brilliant Analytics

Older version of this topic with 100 hardest questions is HERE.
_________________

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?
Extra-hard Quant Tests with Brilliant Analytics

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?
Extra-hard Quant Tests with Brilliant Analytics

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?

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!