GMAT Club Forum

ER

100 Hardest and easiest questions for DS as of April

Bunuel

21 Aug 2015, 03:42

774

19

162,132

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

1,420

0

448,284

by: bb

07 Mar 2012, 08:58

ER

If x is a positive integer, x = ?

605-655 Level | Inequalities, Roots

605-655 Level | Inequalities, Roots hide tags

Bunuel

18 Oct 2021, 01:30

7

4

2,438

by: bumpbot

31 Oct 2023, 06:10

ER

What is the value of x? (1) (x – 5)^2 = 0 (2) (x

505-555 Level | Algebra

505-555 Level | Algebra hide tags

Bunuel

07 Oct 2021, 01:30

6

5

1,829

by: bumpbot

31 Oct 2023, 06:46

ER

What is the value of p? (1) 4|q^2 - 1| = p - 5 (2)

655-705 Level | Absolute Values

655-705 Level | Absolute Values hide tags

Bunuel

15 Jun 2020, 02:02

14

11

3,066

by: bumpbot

31 Oct 2023, 07:38

ER

What is the value of ab ? (1) a|b| = 7 (2) b|a| = 7

555-605 Level | Absolute Values

555-605 Level | Absolute Values hide tags

Bunuel

31 Oct 2023, 01:30

4

2

647

by: unraveled

31 Oct 2023, 08:57

ER

Three completely unmarked containers are used for

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

03 Nov 2014, 09:04

28

7

9,612

by: Engineer1

31 Oct 2023, 09:59

ER

Four friends go to Macys for shopping and buy a top

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

15 Apr 2015, 04:55

66

13

9,054

by: mmdfl

31 Oct 2023, 13:11

ER

A six-sided mosaic contains 24 triangular pieces of

505-555 Level | Geometry

505-555 Level | Geometry hide tags

1, 2

Bunuel

26 Apr 2019, 03:01

99

24

26,819

by: bumpbot

01 Nov 2023, 05:18

ER

There are n students in a class. Of them, k boys and k

605-655 Level | Probability

605-655 Level | Probability hide tags

Bunuel

29 Jan 2015, 08:25

35

17

10,785

by: bumpbot

01 Nov 2023, 07:08

ER

Six congruent circles are packed into an equilateral

705-805 Level | Geometry

705-805 Level | Geometry hide tags

Bunuel

08 Mar 2018, 21:17

39

6

8,019

by: HaSmamit

01 Nov 2023, 07:43

ER

A bicycle store earned a different percent profit on

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

Bunuel

06 Apr 2022, 04:00

9

2

1,889

by: bumpbot

01 Nov 2023, 09:15

ER

One side of a certain triangle has length 7. Is the

605-655 Level | Geometry

605-655 Level | Geometry hide tags

Bunuel

12 Feb 2023, 22:36

4

1,381

by: dvns

01 Nov 2023, 09:36

ER

What is the value of x ? (1) (x 1)(x 2.5) = 1 (2) |x

655-705 Level | Absolute Values, Algebra

655-705 Level | Absolute Values, Algebra hide tags

Bunuel

01 Nov 2023, 01:30

2

1

1,017

by: chetan2u

01 Nov 2023, 09:42

ER

What is the remainder when n is divided by 26, given

655-705 Level | Remainders

655-705 Level | Remainders hide tags

Bunuel

20 Oct 2015, 12:11

92

13

14,830

by: bumpbot

01 Nov 2023, 10:43

ER

What was the percent increase in the average

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

19 Nov 2017, 10:16

11

4

5,705

by: bumpbot

01 Nov 2023, 12:11

ER

If |x – y| = 10, what is the value of x? (1) x >

555-605 Level | Absolute Values, Inequalities

555-605 Level | Absolute Values, Inequalities hide tags

Bunuel

26 Dec 2016, 10:59

5

11

3,536

by: bumpbot

01 Nov 2023, 21:08

ER

A triangle is formed by the x-axis, the y-axis, and

655-705 Level | Coordinate Geometry, Geometry

655-705 Level | Coordinate Geometry, Geometry hide tags

Bunuel

11 Oct 2015, 09:34

42

12

12,561

by: bumpbot

01 Nov 2023, 22:27

ER

If x^2 + 2xwy + 3wy^2 = 144, and if x & y & w

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

18 Mar 2015, 05:07

21

16

7,900

by: bumpbot

02 Nov 2023, 00:46

ER

If x and z are positive numbers less than 16, is z

655-705 Level | Algebra, Number Properties

655-705 Level | Algebra, Number Properties hide tags

Bunuel

17 Dec 2017, 23:38

17

8

4,527

by: Sonia2023

02 Nov 2023, 01:08

ER

If z is a positive integer and r is the remainder when

805+ Level | Remainders

805+ Level | Remainders hide tags

Bunuel

31 Aug 2017, 23:14

82

15

6,799

by: bumpbot

02 Nov 2023, 03:39

ER

The average (arithmetic mean) monthly balance in

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

Bunuel

24 Jun 2017, 12:25

6

2

2,755

by: bumpbot

02 Nov 2023, 04:49

ER

In a survey of retailers, what percent had purchased

555-605 Level | Overlapping Sets, Percent and Interest Problems

555-605 Level | Overlapping Sets, Percent and Interest Problems hide tags

Bunuel

14 Jun 2012, 03:17

182

19

45,887

by: bumpbot

02 Nov 2023, 06:01

ER

If n is an integer between 2 and 100 and if n is also

605-655 Level | Algebra, Number Properties

605-655 Level | Algebra, Number Properties hide tags

Bunuel

23 Feb 2014, 07:51

128

11

29,762

by: bumpbot

02 Nov 2023, 06:13

ER

A certain dealership has two locations. Last month, an

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

05 May 2017, 03:49

2

4

2,200

by: Its_me_aka_ak

02 Nov 2023, 07:16

ER

Last year Publisher X published 1,100 books,

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

Bunuel

26 Apr 2019, 07:20

11

7

24,283

by: bumpbot

02 Nov 2023, 08:13

ER

Is positive integer x odd?

655-705 Level | Divisibility/Multiples/Factors, Number Properties

655-705 Level | Divisibility/Multiples/Factors, Number Properties hide tags

Bunuel

05 Jan 2021, 01:15

28

10

3,543

by: bumpbot

02 Nov 2023, 10:03

ER

What is the value of xy? (1) x + y = 10 (2) x - y = 6

Sub 505 Level | Algebra

Sub 505 Level | Algebra hide tags

Bunuel

06 Feb 2014, 01:37

5

6

23,004

by: bumpbot

02 Nov 2023, 10:31

ER

If n + k = m, what is the value of k ?

Sub 505 Level | Algebra

Sub 505 Level | Algebra hide tags

Bunuel

13 Aug 2012, 07:10

28

6

22,965

by: bumpbot

02 Nov 2023, 10:39

ER

If x = 1 – 2y, what is z?

505-555 Level | Algebra

505-555 Level | Algebra hide tags

Bunuel

16 Jun 2017, 04:08

4

9

3,914

by: bumpbot

02 Nov 2023, 11:06

ER

At a used book store, the books are divided into

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

07 Nov 2019, 03:21

1

3

3,818

by: bumpbot

03 Nov 2023, 03:41

ER

What is the probability that Lee will make exactly 5

505-555 Level | Probability

505-555 Level | Probability hide tags

Bunuel

04 Aug 2018, 09:42

189

15

21,905

by: bumpbot

03 Nov 2023, 08:30

ER

Rachel drove the 120 miles from A to B at a constant

655-705 Level | Distance Problems

655-705 Level | Distance Problems hide tags

Bunuel

23 Feb 2015, 03:22

54

16

11,881

by: bumpbot

03 Nov 2023, 11:38

ER

If a, b, x and y are positive integers, what is the

705-805 Level | Algebra, Exponents

705-805 Level | Algebra, Exponents hide tags

Bunuel

06 Nov 2014, 09:05

23

4

6,651

by: bumpbot

03 Nov 2023, 12:33

ER

If a, b and c are integers, and a+b=c, is b a multiple

655-705 Level | Divisibility/Multiples/Factors

655-705 Level | Divisibility/Multiples/Factors hide tags

Bunuel

03 Nov 2023, 01:30

3

1

672

by: chetan2u

03 Nov 2023, 21:58

ER

Working together, Joe and Joanne finish a job in 2

505-555 Level | Work Problems

505-555 Level | Work Problems hide tags

Bunuel

16 Oct 2023, 01:30

1

2

941

by: Prashant316Jindal

03 Nov 2023, 22:53

ER

If a, b, c and d are distinct numbers, can b be the

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

30 Jul 2022, 17:15

3

2

940

by: bumpbot

04 Nov 2023, 04:55

ER

How many different prime factors does positive integer

705-805 Level | Divisibility/Multiples/Factors, Number Properties

705-805 Level | Divisibility/Multiples/Factors, Number Properties hide tags

1, 2

Bunuel

14 May 2015, 05:25

58

22

13,675

by: bumpbot

04 Nov 2023, 05:14

ER

If J, S, and V are points on the number line, what is

505-555 Level | Arithmetic

505-555 Level | Arithmetic hide tags

Bunuel

31 Dec 2013, 07:12

40

5

16,957

by: bumpbot

04 Nov 2023, 10:57

ER

Working together, Joe and Joanne finish a job in 2

555-605 Level | Work Problems

555-605 Level | Work Problems hide tags

Bunuel

03 Nov 2023, 01:30

4

2

790

by: VivekPrateek

04 Nov 2023, 11:02

ER

If △ denotes a function, what is the value of x△y ?

Sub 505 Level | Functions and Custom Characters

Sub 505 Level | Functions and Custom Characters hide tags

Bunuel

05 Oct 2020, 01:30

1

2

1,412

by: bumpbot

04 Nov 2023, 14:10

ER

Is there a route from A to C that passes through B and

505-555 Level | Geometry

505-555 Level | Geometry hide tags

Bunuel

24 Oct 2017, 23:51

1

3

3,511

by: bumpbot

05 Nov 2023, 01:46

ER

What is the value of t^3 - m^3? (1) t^2 - m^2 = 18

605-655 Level | Algebra

605-655 Level | Algebra hide tags

Bunuel

25 Sep 2019, 21:55

9

4

1,724

by: bumpbot

05 Nov 2023, 05:20

ER

If x and y are positive integers, what is the value of

505-555 Level | Algebra

505-555 Level | Algebra hide tags

1, 2

Bunuel

21 Oct 2015, 21:49

205

24

63,657

by: bumpbot

05 Nov 2023, 07:25

ER

Does (x − y)^2 = 100 ? (1) x^2 + y^2 = 52 (2)

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

04 Aug 2020, 22:55

13

7

2,597

by: youcouldsailaway

05 Nov 2023, 08:32

ER

Three thousand families live in a certain town. How

Sub 505 Level | Overlapping Sets

Sub 505 Level | Overlapping Sets hide tags

Bunuel

16 Oct 2019, 08:21

14

10

8,678

by: bumpbot

05 Nov 2023, 12:21

ER

What is the numerical value of the expression (3m -

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

14 Jan 2018, 06:01

2

6

2,976

by: bumpbot

05 Nov 2023, 20:57

ER

If p and q are positive integers and pq = 24, what is

Sub 505 Level | Algebra, Number Properties

Sub 505 Level | Algebra, Number Properties hide tags

Bunuel

17 Jan 2014, 02:35

29

8

40,181

by: bumpbot

05 Nov 2023, 22:22

ER

What percent of the children in the class are holding

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

06 Nov 2023, 02:30

1

527

by: VivekPrateek

06 Nov 2023, 05:30

ER

For what duration did Antony speak in a meeting?

555-605 Level | Work Problems

555-605 Level | Work Problems hide tags

Bunuel

27 Jan 2020, 02:42

3

1,976

by: bumpbot

06 Nov 2023, 06:28

ER

On Thursday afternoon, two machines, J and R, ran

505-555 Level | Work Problems

505-555 Level | Work Problems hide tags

Bunuel

29 Mar 2017, 05:00

7

3

2,078

by: bumpbot

06 Nov 2023, 06:29

ER

How many hours will it take 6 identical machines,

505-555 Level | Work Problems

505-555 Level | Work Problems hide tags

Bunuel

02 Apr 2018, 22:03

5

7

3,190

by: bumpbot

06 Nov 2023, 06:31

Data Sufficiency (DS)