GMAT Club Forum

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

125

11

55,510

by: Bunuel

12 May 2025, 05:54

ER

100 Hardest and easiest questions for DS as of May 2025

1, 2

Bunuel

21 Aug 2015, 03:42

826

23

177,610

by: Bunuel

02 Sep 2024, 23:51

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DS Question Directory by Topic and Difficulty

bb

07 Mar 2012, 08:58

1,479

0

470,960

by: bb

07 Mar 2012, 08:58

ER

Of the 25 cars sold at a certain dealership yesterday, some had automa

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

yangsta8

27 Sep 2009, 07:11

126

6

48,008

by: bumpbot

02 Jun 2025, 21:50

ER

At a two-day seminar, 90 percent of those registered attended the semi

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

TeHCM

17 Dec 2005, 23:41

206

9

54,367

by: bumpbot

29 May 2025, 00:20

ER

Sets M and N contain exactly m and n elements, respectively.

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

1, 2

Lettherebelight

25 Mar 2016, 05:17

370

20

68,450

by: bumpbot

17 May 2025, 03:04

ER

A certain one-day seminar consisted of a morning session and

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

adarsh12345

12 Nov 2009, 08:59

284

19

66,244

by: bumpbot

17 Apr 2025, 06:52

ER

For what percent of those tested for a certain infection was the test

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

gmatbull

06 Jan 2013, 02:59

99

8

23,195

by: INprimesItrust

10 Apr 2025, 13:24

ER

Sets A, B, and C have some elements in common. If 16 elements are in

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

gmatpapa

07 Apr 2011, 12:50

90

15

40,271

by: bumpbot

29 Mar 2025, 03:22

ER

A manufacturer conducted a survey to determine how many peop

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

1, 2

144144

10 Dec 2010, 12:32

332

20

71,862

by: bumpbot

15 Jan 2025, 12:38

ER

Of the 75 houses in a certain community, 48 have a patio. How many of

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

bmwhype2

21 Feb 2008, 13:37

411

16

76,918

by: KarishmaB

05 Jan 2025, 23:07

ER

What is the probability that a student randomly selected from a class

555-605 Level | Overlapping Sets, Probability

555-605 Level | Overlapping Sets, Probability hide tags

nocilis

02 Feb 2005, 22:38

278

17

188,546

by: bumpbot

27 Dec 2024, 11:50

ER

Each of the 25 balls in a certain box is either red, blue or white and

605-655 Level | Overlapping Sets, Probability

605-655 Level | Overlapping Sets, Probability hide tags

1, 2

lexis

01 May 2008, 11:01

610

35

99,152

by: bumpbot

21 Nov 2024, 00:56

ER

Of the 20 people who each purchased 2 tickets to a concert, some used

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

rahuldev31

13 Feb 2017, 08:36

79

15

14,333

by: bumpbot

24 Oct 2024, 11:46

ER

Of the students who eat in a certain cafeteria, each student either

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

1, 2

dimitri92

04 Jun 2010, 00:29

609

26

122,836

by: bumpbot

15 Oct 2024, 01:28

ER

In a poll, 400 users were asked why they revisited a certain website.

Sub 505 Level | Overlapping Sets

Sub 505 Level | Overlapping Sets hide tags

Bunuel

03 Jun 2018, 11:24

4

3

4,658

by: bumpbot

01 Oct 2024, 02:36

ER

If 60 percent of the employees at company X are female, does

555-605 Level | Overlapping Sets +2 tags

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

TheRob

20 Oct 2009, 13:02

74

13

31,070

by: bumpbot

30 Sep 2024, 07:38

ER

Of the 800 students at a certain college, 250 students live on campus

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

blog

31 Jan 2008, 19:53

65

7

28,579

by: bumpbot

26 Sep 2024, 02:18

ER

A state legislature had a total of 96 members. The members who did not

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

Bunuel

13 Jul 2018, 04:33

18

4

7,515

by: bumpbot

26 Sep 2024, 02:09

ER

Some of the students enrolled at college T are part-time

Sub 505 Level | Overlapping Sets

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jimmyjamesdonkey

26 Apr 2008, 16:51

38

16

21,166

by: bumpbot

26 Sep 2024, 01:05

ER

How many of the 42 people in a group are employed students?

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

sandranjeim

17 Apr 2010, 05:34

86

7

30,217

by: bumpbot

26 Sep 2024, 00:59

ER

Of the 200 members of a certain association, each member who speaks Ge

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

Gordon

12 Mar 2006, 23:40

107

19

31,118

by: bumpbot

20 Sep 2024, 01:22

ER

Do more than 50% of the children in a certain group have

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

cmugeria

10 Sep 2010, 15:29

30

7

13,511

by: bumpbot

14 Sep 2024, 23:15

ER

At least 100 students at a certain high school study japanes

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

1, 2

amitgovin

17 Oct 2009, 13:07

830

24

133,280

by: bumpbot

11 Aug 2024, 11:04

ER

Of the 800 sweaters in a certain store, 150 are red. How

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

jairus

05 Feb 2009, 06:12

125

17

47,492

by: bumpbot

27 Jul 2024, 03:02

ER

Of the 1400 college teachers surveyed, 42% said they considered engagi

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

1, 2

burnttwinky

30 Mar 2010, 22:58

244

36

50,644

by: bumpbot

20 Jul 2024, 08:01

ER

If the drama club and music club is combined, what percent of the comb

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

mydreambschool

21 Feb 2011, 05:23

187

14

22,111

by: bumpbot

17 Jul 2024, 03:41

ER

Of the 4,800 voters who voted for or against Resolution K

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seofah

22 Jul 2009, 13:30

60

9

24,573

by: bumpbot

15 Jun 2024, 21:22

ER

In a certain senior class, 72 percent of the male students and 80 perc

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

tejal777

15 Aug 2009, 20:13

122

11

33,881

by: bumpbot

03 May 2024, 15:31

ER

When 1,000 children were inoculated with a certain vaccine,

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

elgo

25 Oct 2007, 08:42

163

19

57,513

by: bumpbot

14 Apr 2024, 12:42

ER

Three thousand families live in a certain town. How many families who

Sub 505 Level | Overlapping Sets

Sub 505 Level | Overlapping Sets hide tags

Bunuel

16 Oct 2019, 08:21

16

10

10,380

by: bumpbot

05 Nov 2023, 12:21

ER

Of the people who attended a workshop, 60 percent were teachers and so

Sub 505 Level | Overlapping Sets

Sub 505 Level | Overlapping Sets hide tags

Sash143

13 Jan 2016, 04:08

13

4

9,057

by: anairamitch1804

05 Feb 2017, 01:31

Data Sufficiency (DS)