GMAT Club Forum

ER

100 Hardest and easiest questions for DS as of April

Bunuel

21 Aug 2015, 03:42

774

19

162,027

by: bumpbot

28 Nov 2023, 14:32

ER

DS Question Directory by Topic and Difficulty

655-705 Level

655-705 Level hide tags

bb

07 Mar 2012, 08:58

1,419

0

448,110

by: bb

07 Mar 2012, 08:58

Determine the price of two type A footballs if the

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

UB001

15 Jan 2019, 08:24

3

2

4,450

by: bumpbot

10 Feb 2021, 05:32

How many prime numbers are there between the integers

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

UB001

08 Jan 2019, 10:10

4

2

1,596

by: bumpbot

24 Sep 2023, 08:24

ER

What is the value of the positive number, p?

505-555 Level | Divisibility/Multiples/Factors

505-555 Level | Divisibility/Multiples/Factors hide tags

UB001

15 Jan 2019, 08:19

10

2

7,181

by: bumpbot

31 Oct 2023, 07:00

ER

p is a natural number, is (8p+1) prime

705-805 Level | Number Properties

705-805 Level | Number Properties hide tags

uchihaitachi

30 Dec 2019, 07:10

6

4

2,439

by: Consistencypatron

15 Dec 2022, 00:06

ER

What is the remainder when the positive integer X is

555-605 Level | Remainders

555-605 Level | Remainders hide tags

uday1409

15 Dec 2014, 09:54

10

6

5,068

by: bumpbot

18 Apr 2024, 08:06

ER

Mr Tolstoy bought 100 CDs at $x and sold them at $y.

555-605 Level | Percent and Interest Problems

555-605 Level | Percent and Interest Problems hide tags

udaymathapati

31 Oct 2010, 06:19

2

6

3,609

by: bumpbot

03 Sep 2019, 03:35

ER

What is the remainder when the positive integer n is

555-605 Level | Remainders

555-605 Level | Remainders hide tags

udaymathapati

26 Sep 2010, 11:44

14

6

7,738

by: bumpbot

18 Jan 2022, 03:28

ER

Is x > k? (1) 2^x * 2^k = 4 (2) 9^x * 3^k = 81

555-605 Level | Algebra, Exponents

555-605 Level | Algebra, Exponents hide tags

udaymathapati

09 Dec 2010, 09:51

31

9

12,798

by: bumpbot

12 Aug 2022, 07:48

ER

If a, b, k, and m are positive integers, is a^k factor

555-605 Level | Divisibility/Multiples/Factors, Exponents

555-605 Level | Divisibility/Multiples/Factors, Exponents hide tags

udaymathapati

23 Aug 2010, 08:52

14

4

4,976

by: bumpbot

25 Aug 2022, 21:32

ER

If x and y are positive, is 4x > 3y?

655-705 Level | Inequalities

655-705 Level | Inequalities hide tags

udaymathapati

26 Aug 2010, 10:07

64

15

16,656

by: bumpbot

22 Nov 2022, 09:15

ER

The results of a certain experiment included 6 data

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

udaymathapati

23 Jun 2010, 12:30

17

4

12,863

by: bumpbot

19 Jan 2023, 01:52

ER

In what ratio should Solution 1 and Solution 2 be

555-605 Level | Mixture Problems

555-605 Level | Mixture Problems hide tags

udaymathapati

31 Oct 2010, 05:20

57

11

14,672

by: bumpbot

07 Apr 2023, 02:14

ER

If each of the students in a certain mathematics class

505-555 Level | Probability

505-555 Level | Probability hide tags

udaymathapati

23 Aug 2010, 08:54

17

4

13,665

by: bumpbot

15 Apr 2023, 21:01

ER

A box contains red and blue balls only. If there are 8

655-705 Level | Probability

655-705 Level | Probability hide tags

udaymathapati

27 Nov 2010, 20:36

26

7

14,799

by: bumpbot

17 May 2023, 12:19

ER

If r, s, and w are positive numbers such that w = 60r

605-655 Level | Inequalities

605-655 Level | Inequalities hide tags

udaymathapati

12 Sep 2010, 07:25

39

6

15,857

by: bumpbot

24 May 2023, 22:03

ER

If the symbol # represents either addition, subtraction

Sub 505 Level | Arithmetic, Functions and Custom Characters

Sub 505 Level | Arithmetic, Functions and Custom Characters hide tags

udaymathapati

26 Sep 2010, 11:46

16

7

15,588

by: bumpbot

12 Jun 2023, 23:10

ER

Seven different numbers are selected from the integers

605-655 Level | Remainders

605-655 Level | Remainders hide tags

udaymathapati

28 Aug 2010, 02:58

165

16

24,308

by: arbazfatmi1994

06 Aug 2023, 07:25

ER

If x and y are positive, is x^3 > y? (1) x^(1/2)

705-805 Level | Exponents +2 tags

705-805 Level | Exponents, Inequalities, Roots hide tags

udaymathapati

30 Aug 2010, 09:38

51

10

14,077

by: bumpbot

10 Aug 2023, 05:28

ER

Is point A closer to point (1,2) than to point (2,1) ?

655-705 Level | Coordinate Geometry

655-705 Level | Coordinate Geometry hide tags

udaymathapati

02 Mar 2011, 06:10

24

6

7,572

by: bumpbot

28 Aug 2023, 13:37

ER

If b, c, and d are constants and x^2 + bx + c = (x +

705-805 Level | Algebra

705-805 Level | Algebra hide tags

udaymathapati

23 Aug 2010, 08:51

79

13

18,818

by: bumpbot

31 Aug 2023, 01:42

ER

Each person attending a fund-raising party for a

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

udaymathapati

23 Sep 2010, 12:15

114

9

33,831

by: bumpbot

30 Sep 2023, 00:01

ER

In the decimal representation of x, where 0 < x

705-805 Level | Fractions/Ratios/Decimals, Number Properties

705-805 Level | Fractions/Ratios/Decimals, Number Properties hide tags

udaymathapati

17 Aug 2010, 06:37

383

14

30,241

by: colorfuldreams

09 Oct 2023, 06:20

ER

If x and y are positive integers, is x an even integer?

605-655 Level | Number Properties

605-655 Level | Number Properties hide tags

udaymathapati

08 Mar 2011, 13:18

43

6

11,096

by: bumpbot

01 Nov 2023, 20:47

ER

If two copying machines work simultaneously at their

555-605 Level | Work Problems

555-605 Level | Work Problems hide tags

udaymathapati

08 Sep 2010, 11:40

45

4

15,153

by: bumpbot

20 Nov 2023, 09:29

ER

Joanna bought only $0.15 stamps and $0.29 stamps. How

655-705 Level | Arithmetic, Word Problems

655-705 Level | Arithmetic, Word Problems hide tags

1, 2

udaymathapati

26 Sep 2010, 11:48

771

25

83,779

by: jaky_nguyen

05 Dec 2023, 02:44

ER

What is SD of given set of numbers whose average is 5?

555-605 Level | Statistics and Sets Problems

555-605 Level | Statistics and Sets Problems hide tags

udaymathapati

31 Oct 2010, 05:26

19

5

7,770

by: bumpbot

11 Jan 2024, 00:27

ER

What is the tens digit of the positive integer r?

555-605 Level | Fractions/Ratios/Decimals

555-605 Level | Fractions/Ratios/Decimals hide tags

udaymathapati

23 Sep 2010, 12:11

386

18

67,665

by: Bunuel

21 Jan 2024, 02:34

ER

If line k in the xy-plane has equation y = mx + b,

605-655 Level | Coordinate Geometry

605-655 Level | Coordinate Geometry hide tags

udaymathapati

02 Sep 2010, 12:52

158

11

35,733

by: bumpbot

27 Jan 2024, 10:01

If n and k are positive integers, is n/k an even

555-605 Level | Divisibility/Multiples/Factors, Number Properties

555-605 Level | Divisibility/Multiples/Factors, Number Properties hide tags

udaymathapati

02 Sep 2010, 12:46

24

5

14,687

by: bumpbot

17 Mar 2024, 02:28

ER

In a survey of 200 college graduates, 30 percent said

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

udaymathapati

26 Sep 2010, 11:47

146

14

43,768

by: Akhil12345800

17 May 2024, 11:42

ER

A list contains n distinct integers. Are all n

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

1, 2

UdaySJha

11 Jan 2014, 01:18

144

32

26,764

by: bumpbot

27 May 2023, 02:38

ER

PQ and RS are two chords of a circle and the lines RP

705-805 Level | Geometry

705-805 Level | Geometry hide tags

udso

28 Oct 2013, 15:48

25

7

19,959

by: bumpbot

07 Dec 2022, 01:41

ER

Beth's bank charges a service fee on a regular

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

ugimba

26 Jan 2010, 14:18

37

15

24,233

by: bumpbot

11 Dec 2022, 12:25

ER

If y>=0, What is the value of x? (1) |x-3|>=y

705-805 Level | Absolute Values, Inequalities

705-805 Level | Absolute Values, Inequalities hide tags

ugimba

09 Jan 2010, 14:17

253

14

38,047

by: bumpbot

09 Jan 2024, 03:29

ER

A contractor combined x tons of a gravel mixture that

655-705 Level | Mixture Problems

655-705 Level | Mixture Problems hide tags

1, 2

ugimba

28 Jan 2010, 15:07

334

20

67,218

by: bumpbot

18 Apr 2024, 08:36

ER

If x is an integer, what is the value of x? (1) |x -

705-805 Level | Absolute Values

705-805 Level | Absolute Values hide tags

umangshah

25 Oct 2023, 03:13

3

1

611

by: chetan2u

25 Oct 2023, 22:50

It will rain today. Will it rain tomorrow?

Poor Quality

Poor Quality hide tags

UMB

24 May 2007, 08:31

2

10

44,064

by: georgesanjay

15 Jul 2015, 07:48

ER

What is the last non-zero digit of

655-705 Level | Algebra +3 tags

655-705 Level | Algebra, Arithmetic, Exponents, Number Properties hide tags

umg

23 Apr 2017, 08:14

42

14

4,828

by: bumpbot

25 Nov 2023, 00:44

ER

Is the average (arithmetic mean) of the seven numbers

Sub 505 Level | Statistics and Sets Problems

Sub 505 Level | Statistics and Sets Problems hide tags

UncleFrodo

17 Jul 2018, 12:14

24

4

17,435

by: raka99

04 Jul 2023, 22:19

ER

What is the numerical value of x^2 25? (1) x 5 = 3 (2)

Poor Quality

Poor Quality hide tags

unebaguette

16 Jun 2019, 21:10

1

2,281

by: Bunuel

16 Jun 2019, 21:16

ER

Companies X and Y are direct competitors in the

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

unraveled

05 Dec 2019, 03:02

1

2

1,532

by: unraveled

06 Dec 2019, 03:46

ER

What is the average (arithmetic mean) of 3x and 15z?

505-555 Level | Algebra

505-555 Level | Algebra hide tags

unraveled

12 Apr 2020, 00:49

5

6

2,419

by: bumpbot

27 Jul 2021, 23:43

ER

What is the greatest common divisor of positive

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

unraveled

03 Jan 2020, 01:36

7

6

2,849

by: bumpbot

12 Dec 2022, 05:12

ER

Of the 700 flat screen televisions sold by Easy

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

unraveled

12 May 2020, 21:08

3

2

1,643

by: SaquibHGMATWhiz

06 Jan 2023, 01:54

ER

Is triangle ABC a right triangle? 1. Angle BAC +

555-605 Level | Geometry

555-605 Level | Geometry hide tags

unraveled

07 Jul 2020, 07:17

7

4

4,790

by: ahamd

23 Feb 2023, 12:02

ER

What is the sum of the series 12, 2, 15, -1, 18, -4,

655-705 Level | Arithmetic, Sequences

655-705 Level | Arithmetic, Sequences hide tags

unraveled

09 Dec 2019, 11:12

15

10

3,461

by: bumpbot

30 Jul 2023, 01:46

ER

If |x - 5| = 2|x - 8|, then what is the value of x?

705-805 Level | Absolute Values, Inequalities

705-805 Level | Absolute Values, Inequalities hide tags

unraveled

31 Jan 2020, 11:42

26

4

3,052

by: bumpbot

30 Jul 2023, 01:59

ER

What is the remainder when 7 + 10n is divided by 3, if

505-555 Level | Number Properties, Remainders

505-555 Level | Number Properties, Remainders hide tags

unraveled

27 Nov 2019, 23:42

5

4

2,620

by: bumpbot

11 Apr 2024, 09:42

ER

A certain company has 255 employees. If an employee is

605-655 Level | Probability

605-655 Level | Probability hide tags

1, 2

unuk50

19 Jun 2016, 05:17

161

20

36,201

by: bumpbot

17 Jan 2024, 22:41

ER

All of the m men and w women who were members of

705-805 Level | Percent and Interest Problems

705-805 Level | Percent and Interest Problems hide tags

user22020

17 Feb 2024, 23:04

7

5

1,450

by: Bunuel

14 May 2024, 12:42

Data Sufficiency (DS)