GMAT Club Forum

ER

100 Hardest and easiest questions for DS as of April

Bunuel

21 Aug 2015, 03:42

774

19

162,034

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

448,122

by: bb

07 Mar 2012, 08:58

ER

When a positive integer n is divided by 3, what is the

505-555 Level | Remainders

505-555 Level | Remainders hide tags

MathRevolution

03 Aug 2018, 02:06

9

3

6,539

by: bumpbot

29 Apr 2024, 22:28

ER

Michael's broker sends Michael a margin call if the

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

25 Mar 2020, 02:13

4

2

1,954

by: bumpbot

29 Apr 2024, 16:37

ER

If Jay has 99 problems, in how many ways can he select

705-805 Level | Combinations

705-805 Level | Combinations hide tags

Bunuel

18 Apr 2017, 04:54

134

13

13,375

by: samarpan.g28

29 Apr 2024, 12:04

ER

If 2 different representatives are to be selected at

805+ Level | Probability

805+ Level | Probability hide tags

Bunuel

04 Mar 2014, 00:17

500

17

50,499

by: bumpbot

29 Apr 2024, 11:23

Martin has worked for the last 30 years. If his

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

dinesh8

30 Apr 2006, 22:20

18

2

8,838

by: bumpbot

29 Apr 2024, 11:06

ER

If n is a nonzero integer, is xn < 1?

505-555 Level | Inequalities, Number Properties

505-555 Level | Inequalities, Number Properties hide tags

lastshot

20 Aug 2014, 20:56

22

8

13,615

by: bumpbot

29 Apr 2024, 10:24

ER

The sequence of four numbers a1, a2 , a3 and a4 is

505-555 Level | Arithmetic, Sequences

505-555 Level | Arithmetic, Sequences hide tags

pritishmohan

18 May 2013, 01:25

67

10

16,307

by: bumpbot

29 Apr 2024, 08:42

ER

During a sale, for each shirt that Mark purchased at

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

sondenso

09 Jun 2008, 00:59

33

14

17,151

by: bumpbot

29 Apr 2024, 07:13

ER

If x is an integer, is x/y an integer?

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

DeeptiM

14 Aug 2011, 13:15

40

6

8,425

by: bumpbot

29 Apr 2024, 06:25

ER

A bag of marbles consist of a mixture of black and red

555-605 Level | Probability

555-605 Level | Probability hide tags

Bunuel

29 Apr 2024, 01:30

4

1

264

by: Nidzo

29 Apr 2024, 06:25

ER

Jim traveled from X to Y, and arrived at Z. If the

655-705 Level | Distance Problems

655-705 Level | Distance Problems hide tags

Bunuel

09 Apr 2024, 01:30

3

5

746

by: Nidzo

29 Apr 2024, 05:32

ER

For a positive integer n, what is the remainder when

555-605 Level | Divisibility/Multiples/Factors

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

MathRevolution

03 Oct 2016, 00:50

11

6

5,524

by: bumpbot

29 Apr 2024, 04:54

ER

If n is a positive integer and is not the square of

655-705 Level | Number Properties

655-705 Level | Number Properties hide tags

Bunuel

05 Oct 2017, 05:10

11

3

3,024

by: bumpbot

29 Apr 2024, 02:05

ER

Two trains (Train A and Train B) leave their stations

505-555 Level | Distance Problems

505-555 Level | Distance Problems hide tags

cat2010

27 Nov 2022, 23:44

7

3

1,516

by: Bunuel

29 Apr 2024, 00:29

ER

In the xy-plane, if line k has negative slope and

705-805 Level | Coordinate Geometry

705-805 Level | Coordinate Geometry hide tags

Bunuel

02 Jul 2012, 02:45

528

13

58,507

by: bumpbot

28 Apr 2024, 20:29

ER

At the bakery, Lew spent a total of $6.00 for one kind

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

pmal04

07 Apr 2009, 10:57

76

10

18,634

by: samarpan.g28

28 Apr 2024, 14:35

ER

If n is a positive integer, is n(n^2 - 1) is divisible

705-805 Level | Divisibility/Multiples/Factors

705-805 Level | Divisibility/Multiples/Factors hide tags

Bunuel

15 Feb 2021, 03:07

5

4

5,255

by: samarpan.g28

28 Apr 2024, 14:10

ER

Larry saves x dollars per month. Will Larry’s total

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

agnok

06 Oct 2010, 07:10

39

4

11,737

by: CWC

28 Apr 2024, 13:36

Records show that over two weeks, everyone who shopped

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

MT1302

18 Mar 2024, 08:36

5

2

864

by: ShubhamSS28

28 Apr 2024, 12:41

ER

Economists work with supply and demand curves that

655-705 Level | Coordinate Geometry, Word Problems

655-705 Level | Coordinate Geometry, Word Problems hide tags

Fish181

07 Apr 2024, 11:03

5

3

936

by: Bunuel

28 Apr 2024, 11:18

ER

In each game of a certain tournament, a contestant

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

16 Jun 2016, 04:25

217

18

33,305

by: AKukreja

28 Apr 2024, 10:17

Lea estimated each of the charges on her te

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

XimeSol

08 Dec 2023, 12:15

15

3

2,108

by: Fish181

28 Apr 2024, 09:29

ER

What is the standard deviation of three positive

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

TheUltimateWinner

04 Sep 2019, 09:49

4

3

1,432

by: bumpbot

28 Apr 2024, 07:47

ER

Is x^2 + 9 prime? (1) x is odd (2) 3 x 7

705-805 Level | Number Properties

705-805 Level | Number Properties hide tags

Bunuel

10 Feb 2017, 09:39

36

12

7,770

by: bumpbot

28 Apr 2024, 06:16

ER

In a two-story apartment complex, each apartment on

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

23 May 2020, 08:23

62

11

10,480

by: Bunuel

28 Apr 2024, 05:47

ER

Alex spends 30% of his income on his children’s

805+ Level | Percent and Interest Problems, Word Problems

805+ Level | Percent and Interest Problems, Word Problems hide tags

VenoMfTw

02 Aug 2015, 19:01

26

7

6,149

by: bumpbot

28 Apr 2024, 05:27

Brian got 80 percent of the first 20 questions on

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

gmatophobia

28 Apr 2024, 01:40

1

227

by: demblr

28 Apr 2024, 04:58

ER

A weighted coin has a probability p of showing heads.

655-705 Level | Probability

655-705 Level | Probability hide tags

GMATBusters

05 May 2018, 22:55

14

6

5,668

by: bumpbot

28 Apr 2024, 04:16

ER

What was the amount of money donated to a certain

Sub 505 Level | Arithmetic, Percent and Interest Problems

Sub 505 Level | Arithmetic, Percent and Interest Problems hide tags

Bunuel

03 Jan 2014, 06:13

37

12

21,003

by: bumpbot

28 Apr 2024, 02:50

ER

If x and y are positive, is x < 10 < y?

555-605 Level | Inequalities

555-605 Level | Inequalities hide tags

Bunuel

01 Oct 2012, 05:17

153

16

39,057

by: bumpbot

28 Apr 2024, 01:28

ER

Is a divisible by 3?

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

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

chetan2u

04 Jan 2018, 09:15

22

11

2,767

by: bumpbot

28 Apr 2024, 01:09

ER

NEW!!! Tough and tricky exponents and roots questions

555-605 Level | Algebra +2 tags

555-605 Level | Algebra, Exponents, Roots hide tags

1, 2

Bunuel

12 Jan 2012, 03:50

1,128

39

134,440

by: bumpbot

28 Apr 2024, 00:49

ER

The amount of water in a salt water sugar solution is

805+ Level | Mixture Problems

805+ Level | Mixture Problems hide tags

PyjamaScientist

04 Dec 2021, 11:59

19

12

5,236

by: sayan640

27 Apr 2024, 22:45

ER

Each of the 45 books on a shelf is written either in

605-655 Level | Overlapping Sets, Probability

605-655 Level | Overlapping Sets, Probability hide tags

1, 2

AJ1012

23 Dec 2015, 14:16

339

21

44,463

by: bumpbot

27 Apr 2024, 12:17

ER

Is the median of the a + b quiz scores greater

805+ Level | Statistics and Sets Problems

805+ Level | Statistics and Sets Problems hide tags

DerekLin

14 Feb 2024, 01:16

22

7

2,451

by: nisen20

27 Apr 2024, 11:40

ER

A cafeteria offers seven types of sandwiches, each

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

08 Feb 2017, 01:51

20

6

4,865

by: bumpbot

27 Apr 2024, 11:07

ER

In the first hour of a bake sale, students sold either

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

emmak

08 Jun 2013, 19:04

79

14

13,160

by: bumpbot

27 Apr 2024, 07:52

ER

What is the value of x?

655-705 Level | Absolute Values, Algebra

655-705 Level | Absolute Values, Algebra hide tags

Bunuel

01 Jun 2015, 07:59

20

8

4,915

by: bumpbot

27 Apr 2024, 07:51

ER

If x and y are positive integers, what is the greatest

805+ Level | Divisibility/Multiples/Factors

805+ Level | Divisibility/Multiples/Factors hide tags

1, 2

zest4mba

23 Aug 2010, 11:27

336

31

38,384

by: bumpbot

27 Apr 2024, 06:13

ER

Driving at their respective constant speeds along the

655-705 Level | Distance Problems

655-705 Level | Distance Problems hide tags

jayant17155

03 Dec 2023, 06:03

19

8

2,448

by: nisen20

27 Apr 2024, 04:33

ER

For a class of 50 students, the table above reports

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

ajgoupil

12 Feb 2020, 10:50

16

5

4,899

by: Bunuel

27 Apr 2024, 02:02

ER

Of 300 members in an organization, each German

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

Kritesh

17 May 2017, 13:13

7

3

2,883

by: Bunuel

27 Apr 2024, 01:49

ER

(|x| - 1)/(x - 1) =?

555-605 Level | Absolute Values

555-605 Level | Absolute Values hide tags

fattty

13 Jan 2016, 23:36

60

12

10,762

by: bumpbot

26 Apr 2024, 22:51

ER

If x is a positive integer, what is the remainder when

605-655 Level | Remainders

605-655 Level | Remainders hide tags

tuanh135

12 Oct 2017, 08:29

30

11

12,995

by: bumpbot

26 Apr 2024, 21:46

ER

What is the remainder when m is divided by 3? (1) The

Sub 505 Level | Remainders

Sub 505 Level | Remainders hide tags

Bunuel

15 Jul 2019, 00:37

5

4

4,416

by: bumpbot

26 Apr 2024, 21:34

ER

What is the average (arithmetic mean) of x and y?

Sub 505 Level | Statistics and Sets Problems

Sub 505 Level | Statistics and Sets Problems hide tags

Bunuel

24 Dec 2013, 03:42

26

7

39,191

by: bumpbot

26 Apr 2024, 11:01

ER

For integers a, b, c and d, if the value of

Poor Quality

Poor Quality hide tags

devashish2407

26 Apr 2024, 10:00

3

6

275

by: Bunuel

26 Apr 2024, 10:48

ER

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

705-805 Level | Number Properties

705-805 Level | Number Properties hide tags

Bunuel

17 Dec 2017, 01:42

10

3,068

by: bumpbot

26 Apr 2024, 06:17

ER

A certain medical insurance company sold two types of

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

26 Apr 2024, 01:30

2

1

363

by: Nidzo

26 Apr 2024, 05:48

ER

If $ represents a digit in the 7-digit number

505-555 Level | Fractions/Ratios/Decimals, Word Problems

505-555 Level | Fractions/Ratios/Decimals, Word Problems hide tags

Bunuel

11 Dec 2014, 07:08

38

6

10,680

by: bumpbot

26 Apr 2024, 03:23

Data Sufficiency (DS)