GMAT Club Forum

ER

100 Hardest and easiest questions for DS as of April

Bunuel

21 Aug 2015, 03:42

774

19

162,136

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

448,291

by: bb

07 Mar 2012, 08:58

In a city, there are 400 people who are member of one

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

amanvermagmat

04 May 2018, 00:29

7

5

1,630

by: gvij2017

26 May 2018, 20:36

ER

In a class 60% of the students wear glasses and 50% of

Poor Quality

Poor Quality hide tags

failatmath

25 May 2018, 07:25

13

6

7,272

by: push12345

03 Jul 2018, 09:16

In a class of 100 students, how many are boys? (There

655-705 Level | Mixture Problems

655-705 Level | Mixture Problems hide tags

Aayu12

12 Jan 2020, 01:03

15

4

6,934

by: RohitSaluja

19 Mar 2021, 00:59

ER

In a class of 120 students, how many passed in only

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

Bunuel

10 Jul 2017, 04:26

3

2,183

by: bumpbot

02 Oct 2018, 10:10

ER

In a class of 160 students, the number of students

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

Turkish

17 Apr 2016, 18:08

6

4

3,066

by: daniformic

19 Nov 2020, 16:13

ER

In a class of 200 students, 30 percent are enrolled in

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

18 Mar 2024, 01:30

3

1

499

by: gmatophobia

18 Mar 2024, 12:10

ER

In a class of 21, how many scored above the class

655-705 Level | Statistics and Sets Problems

655-705 Level | Statistics and Sets Problems hide tags

Bunuel

02 Aug 2023, 10:00

32

5

6,814

by: KarishmaB

29 Apr 2024, 22:58

ER

In a class of 25 students, 15 students had an average

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

Bunuel

01 Jan 2021, 10:00

1

688

by: anjanita

01 Jan 2021, 10:09

ER

In a class of 30 students, 17 students study Chinese,

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

rxs0005

09 Sep 2010, 07:52

4

5

8,702

by: bumpbot

14 Mar 2023, 10:59

ER

In a class of 30 students, Emma secured the third rank

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

nailin16

27 Nov 2016, 22:15

5

2

3,908

by: bumpbot

17 Jul 2023, 01:06

In a class of 34 students, X know how to sing, Y know

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

amanvermagmat

02 Jul 2018, 11:28

1

807

by: amanvermagmat

04 Jul 2018, 23:11

ER

In a class of 40 students, is the average (arithmetic

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

Bunuel

11 Jun 2022, 08:30

1

2

1,383

by: SaquibHGMATWhiz

14 Jun 2022, 05:01

ER

In a class of 50 students, everyone plays at least one

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

10 Jul 2017, 04:25

1

2

1,954

by: bumpbot

04 Jan 2019, 01:48

ER

In a class of 80 students at least 40 participated in

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

Bunuel

20 May 2024, 01:30

2

1

220

by: zhanbo

20 May 2024, 09:40

ER

In a class test, the median score is 50. what percent

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

Bunuel

17 Nov 2021, 08:30

1

1,808

by: JerryAtDreamScore

17 Nov 2021, 09:41

ER

In a class with 12 children, q of the children are

805+ Level | Probability

805+ Level | Probability hide tags

ksharma12

20 Apr 2010, 17:40

8

6

4,555

by: bumpbot

18 Feb 2022, 09:54

ER

In a class with 12 children, q of the children are

705-805 Level | Probability

705-805 Level | Probability hide tags

Bunuel

28 Jan 2018, 23:40

10

3

2,356

by: CrackverbalGMAT

20 Jun 2021, 04:50

ER

In a class, 20 students speak Spanish, 15 speak

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

Bunuel

10 May 2020, 12:05

7

5

7,759

by: bumpbot

11 Sep 2022, 04:59

ER

In a class, 30 percent of the boys read The Telegraph

655-705 Level | Percent and Interest Problems

655-705 Level | Percent and Interest Problems hide tags

Bunuel

25 Jun 2017, 04:15

5

4

1,680

by: bumpbot

25 Sep 2018, 09:59

ER

In a class, each of the students received a single

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

d999

04 May 2020, 23:27

28

8

6,259

by: bumpbot

08 Dec 2023, 06:54

ER

In a class, each of the students were asked to pick an

Poor Quality

Poor Quality hide tags

tabsang

25 Dec 2012, 01:59

2

3,655

by: tabsang

25 Dec 2012, 05:43

ER

In a class, every student is either American or

705-805 Level | Overlapping Sets, Probability

705-805 Level | Overlapping Sets, Probability hide tags

jcaguirre91

15 Oct 2021, 19:16

35

5

5,156

by: gmatophobia

31 Jul 2023, 14:14

ER

In a class, every student is either American or

655-705 Level | Probability

655-705 Level | Probability hide tags

Bunuel

01 Dec 2021, 09:30

6

9

2,259

by: chetan2u

06 Dec 2021, 20:28

ER

In a class, is the number of people with more than y

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

Bunuel

29 Aug 2019, 06:56

5

4

1,375

by: bumpbot

04 Oct 2020, 04:20

In a class, teacher decides to choose two students for

555-605 Level | Arithmetic, Combinations

555-605 Level | Arithmetic, Combinations hide tags

amanvermagmat

05 Jun 2018, 11:56

19

4

6,475

by: bumpbot

14 Apr 2024, 06:51

ER

In a class, the maximum score of a student is 80, and

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

Viserion99

22 May 2018, 22:26

3

1,596

by: Viserion99

22 May 2018, 23:29

ER

In a class, there are 15 boys and some girls. Three

555-605 Level | Probability

555-605 Level | Probability hide tags

Bunuel

17 May 2024, 01:30

1

247

by: Jsgambach

17 May 2024, 05:14

ER

In a class, there are 170 students, each plays at

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

Bunuel

02 Feb 2023, 08:45

5

1

817

by: stne

08 Feb 2023, 10:07

ER

In a classroom, 40% of the boys had read a particular

605-655 Level | Overlapping Sets, Probability

605-655 Level | Overlapping Sets, Probability hide tags

Bunuel

13 Mar 2020, 01:16

9

8

3,392

by: bumpbot

24 Jan 2022, 07:47

ER

In a classroom, one student is to be selected at

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

Bunuel

14 Jul 2021, 02:30

1

1,379

by: stne

07 Aug 2021, 15:41

ER

In a clock, what is the distance traveled by the tip

555-605 Level | Geometry

555-605 Level | Geometry hide tags

Bunuel

05 Sep 2018, 23:37

3

3,617

by: jrk23

20 Feb 2021, 13:18

ER

In a club for left-handed people that also admits the

655-705 Level | Overlapping Sets, Probability

655-705 Level | Overlapping Sets, Probability hide tags

Bunuel

04 Nov 2019, 02:43

19

6

5,302

by: bumpbot

07 Aug 2023, 15:58

ER

In a college alumni meet, 30% of the students were

505-555 Level | Overlapping Sets, Word Problems

505-555 Level | Overlapping Sets, Word Problems hide tags

Bunuel

23 Jan 2021, 03:13

2

2,212

by: CEdward

23 Jan 2021, 21:10

ER

In a college, 300 graduates sit for the recruitment

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

20 May 2020, 08:47

4

3

1,311

by: allan89

23 May 2020, 13:09

ER

In a colony, there are 75 families, each having at

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Ann1995

04 Nov 2022, 01:49

8

4

2,235

by: SaquibHGMATWhiz

04 Nov 2022, 09:54

In a community of 75 people, everyone daily drinks

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

amanvermagmat

03 May 2018, 07:55

2

1,488

by: push12345

20 May 2018, 10:34

ER

In a company, an employee's salary in thousands of

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

16 Feb 2023, 01:47

2

1

881

by: stne

25 Feb 2023, 07:51

In a competition, winner are to be selected in three

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

ktzsikka

23 Oct 2021, 09:13

11

3

2,577

by: singhall

20 Jun 2023, 08:00

ER

In a computer repair shop the ratio of the number of

555-605 Level | Fractions/Ratios/Decimals

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

gmihir

19 May 2012, 09:22

12

5

7,046

by: bumpbot

09 Apr 2023, 12:46

ER

In a conference, if each of the 1230 participants

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

Bunuel

25 Oct 2018, 02:09

7

6

2,530

by: bumpbot

02 Feb 2023, 08:26

ER

In a convenience store in a certain year, the average

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

Bunuel

14 Mar 2018, 01:27

9

4

2,491

by: bumpbot

15 May 2023, 09:55

ER

In a cookie-eating contest, there are 200 cookies

Poor Quality

Poor Quality hide tags

guygmat

18 Jun 2011, 21:03

9

17

9,076

by: bumpbot

13 Sep 2016, 06:29

In a cost-accounting class of a financial course,

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

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

amanvermagmat

26 Mar 2018, 00:25

2

3

1,110

by: AkshdeepS

31 Mar 2018, 07:02

ER

In a country, 45% of male citizen and 47% of female

705-805 Level | Probability

705-805 Level | Probability hide tags

Bunuel

26 Jul 2022, 01:30

4

1

1,130

by: stne

12 Aug 2022, 10:18

ER

In a country, 65% of male citizen and 68% of female

655-705 Level | Percent and Interest Problems

655-705 Level | Percent and Interest Problems hide tags

iaratul

26 Sep 2014, 05:12

10

8

3,328

by: bumpbot

06 Sep 2019, 09:28

ER

In a country, 65% of male citizen and 68% of female

655-705 Level | Percent and Interest Problems

655-705 Level | Percent and Interest Problems hide tags

Bunuel

06 Sep 2019, 10:54

1

1,049

by: Mohammadmo

06 Sep 2019, 13:28

ER

In a demographic study, the population and total

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

puma

17 May 2008, 02:55

54

14

21,797

by: bumpbot

15 Jul 2023, 11:16

ER

In a factory, there are workers, executives, and

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

07 May 2024, 01:30

4

404

by: Edoua

07 May 2024, 07:40

ER

In a finite sequence S, each term after first term is

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

GMATBusters

24 Oct 2020, 19:03

9

13

2,374

by: bumpbot

16 Sep 2022, 01:42

ER

In a fleet of 70 cars that are either black or white.

605-655 Level | Fractions/Ratios/Decimals, Word Problems

605-655 Level | Fractions/Ratios/Decimals, Word Problems hide tags

Bunuel

28 Mar 2018, 23:47

4

1,456

by: AkshdeepS

18 Apr 2018, 00:03

Data Sufficiency (DS)