GMAT Club Forum

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

Bunuel

25 Oct 2022, 08:11

55

7

24,486

by: unicornilove

22 May 2024, 11:49

ER

100 Hardest and easiest questions for DS as of May 2024

Bunuel

21 Aug 2015, 03:42

775

19

162,698

by: bumpbot

28 Nov 2023, 14:32

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DS Question Directory by Topic and Difficulty

bb

07 Mar 2012, 08:58

1,422

0

449,072

by: bb

07 Mar 2012, 08:58

ER

In a certain class of n students, the average

655-705 Level | Statistics and Sets Problems

gmatophobia

26 Sep 2023, 05:45

4

1

527

by: JeffTargetTestPrep

26 Sep 2023, 08:26

In a certain class of n students, the average

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

gmatophobia

26 Sep 2023, 05:17

4

2

599

by: mysterymanrog

26 Sep 2023, 23:50

ER

In a certain class, a teacher distributed a few candies and a few bars

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

25 May 2022, 07:00

2

1

2,932

by: Nidzo

26 May 2022, 00:26

ER

In a certain class, boys' heights range is 10 inches, and

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

banksy

04 Mar 2011, 19:42

6

5

4,398

by: bumpbot

24 Oct 2023, 01:12

ER

In a certain class, one student is to be selected at random to read.

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

Bunuel

23 Jul 2012, 04:46

28

10

22,706

by: bumpbot

28 Oct 2023, 02:18

ER

In a certain class, some students donated cans of food to a local food

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

Bunuel

24 Jun 2018, 20:55

24

7

16,174

by: ScottTargetTestPrep

07 May 2021, 12:11

ER

In a certain class, the ratio of girls to boys is 5:4. How many girls

655-705 Level | Fractions and Ratios

655-705 Level | Fractions and Ratios hide tags

Dhairya275

22 Sep 2013, 13:57

35

16

27,418

by: WheatyPie

14 Mar 2022, 02:49

ER

In a certain class, the ratio of left-handed students to right-handed

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

02 Mar 2022, 10:00

1

1,544

by: IanStewart

02 Mar 2022, 10:10

ER

In a certain class, the ratio of left-handed students to right-handed

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

02 Mar 2022, 09:30

2

3

4,436

by: Engineer1

30 Oct 2023, 19:47

ER

In a certain classroom, there are 80 books, of which 24 are fiction an

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

Bunuel

16 Jul 2012, 04:54

59

16

20,309

by: bumpbot

03 Jun 2024, 05:27

ER

In a certain club, every member likes red wine or white wine or both.

805+ Level | Overlapping Sets

805+ Level | Overlapping Sets hide tags

Bunuel

12 Feb 2021, 01:15

15

4

8,878

by: bumpbot

02 Aug 2022, 05:36

ER

In a certain club, how many people serve on both the Recruitment and

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

Bunuel

01 Jan 2021, 07:45

2

1,253

by: CEdward

23 Jan 2021, 21:53

ER

In a certain coding scheme, each word is encoded by replacing each

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

Bunuel

22 Dec 2014, 09:20

3

2,841

by: g106

23 Dec 2014, 11:33

ER

In a certain community orchestra, 40 percent of the members are string

505-555 Level | Overlapping Sets

505-555 Level | Overlapping Sets hide tags

Bunuel

16 Feb 2022, 08:30

1

1,424

by: Charli08

17 Feb 2022, 16:45

ER

In a certain company, 25% of the women and 17% of the men participate

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

09 Apr 2015, 07:15

59

8

9,566

by: bumpbot

30 Apr 2024, 01:49

ER

In a certain company, at least 200 people own manual transmission

655-705 Level | Percent and Interest Problems, Statistics and Sets Problems

655-705 Level | Percent and Interest Problems, Statistics and Sets Problems hide tags

MahmoudFawzy

07 Sep 2019, 11:16

8

4

7,166

by: bumpbot

27 Jul 2023, 10:13

ER

In a certain company, if 75% of the employees usually use a

655-705 Level | Overlapping Sets

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banksy

10 Feb 2011, 16:59

25

14

9,929

by: bumpbot

27 Feb 2024, 10:00

ER

In a certain company, the average (arithmetic mean) salary of finance

805+ Level | Statistics and Sets Problems

805+ Level | Statistics and Sets Problems hide tags

GMATBusters

06 Oct 2018, 10:05

11

13

2,835

by: T1101

10 Oct 2018, 07:20

ER

In a certain company, the average wages of employees in Town A is X

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

Bunuel

05 Apr 2024, 01:30

11

2

998

by: purvibagmar

11 Apr 2024, 08:10

ER

In a certain company, what is the median salary of the employees? (1)

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

Kushchokhani

11 Jan 2023, 19:59

4

2

1,122

by: SaquibHGMATWhiz

16 Jan 2023, 01:32

ER

In a certain conference room each row of chairs has the same number of

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

enigma123

20 Mar 2012, 10:30

156

9

48,087

by: bumpbot

08 Apr 2024, 10:19

ER

In a certain country, the average retirement age for college graduates

655-705 Level | Statistics and Sets Problems, Word Problems

655-705 Level | Statistics and Sets Problems, Word Problems hide tags

Bunuel

18 May 2017, 00:12

18

10

6,137

by: bumpbot

09 Nov 2020, 00:23

ER

In a certain country, the retail price includes a value added tax of

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

Bunuel

12 Dec 2022, 02:30

3

1

884

by: Rabab36

12 Dec 2022, 03:08

ER

In a certain daycare, are there more boys than girls?

555-605 Level | Inequalities, Word Problems

555-605 Level | Inequalities, Word Problems hide tags

Bunuel

07 Apr 2022, 01:30

6

3

2,828

by: bumpbot

04 Apr 2024, 22:48

ER

In a certain department of ABC business school, there are either accou

605-655 Level | Fractions and Ratios, Word Problems

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

Bunuel

29 Jan 2020, 01:43

4

3

1,392

by: BhishmaNaidu99

29 Jan 2020, 08:40

ER

In a certain election, 240 men and 280 women voted for the winning can

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

Bunuel

21 Oct 2019, 06:10

4

3

3,882

by: bumpbot

21 Jan 2024, 13:48

In a certain election, of the voters in District X and of the voters

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

guddo

24 Jan 2024, 04:13

4

1

891

by: gmatophobia

24 Jan 2024, 23:15

ER

In a certain factory, 20 employees work in five divisions. No two divi

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

16 Jun 2021, 05:30

4

2

1,083

by: TestPrepUnlimited

20 Jun 2021, 14:25

ER

In a certain factory, hours worked by each employee in excess of 40...

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

nalinnair

26 May 2016, 21:23

22

6

16,225

by: bumpbot

03 May 2023, 08:22

ER

In a certain first grade classroom, the average height is x inches for

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

Bunuel

18 May 2017, 00:16

8

4

4,028

by: bumpbot

01 Jun 2023, 01:20

ER

In a certain forest 1/5 of the trees are Walnuts and 1/6 of the trees

605-655 Level | Inequalities, Word Problems

605-655 Level | Inequalities, Word Problems hide tags

Bunuel

09 Dec 2019, 00:53

2

1,554

by: LevanKhukhunashvili

09 Dec 2019, 09:36

ER

In a certain game only one player can win and only one player always

555-605 Level | Probability

555-605 Level | Probability hide tags

SivaKumarP

23 Apr 2015, 19:37

35

15

7,953

by: bumpbot

03 Aug 2023, 06:03

ER

In a certain game played with red chips and blue chips, each

705-805 Level | Arithmetic, Word Problems

705-805 Level | Arithmetic, Word Problems hide tags

rite2deepti

25 Nov 2010, 01:58

27

6

11,120

by: bumpbot

02 Jan 2024, 09:38

ER

In a certain game, a player will randomly select one marble each time.

805+ Level | Probability

805+ Level | Probability hide tags

Bunuel

15 Oct 2021, 01:30

7

3

1,964

by: bumpbot

31 Jan 2024, 08:10

ER

In a certain game, scoring plays result in 2, 7, or 11 point

Poor Quality

Poor Quality hide tags

MzJavert

03 Jul 2013, 08:34

7

4,048

by: Bunuel

27 Feb 2017, 22:08

ER

In a certain game, what is the probability that Martha wins the first

705-805 Level | Probability

705-805 Level | Probability hide tags

srikanth9502

04 Aug 2017, 12:22

6

2

2,225

by: mikemcgarry

04 Aug 2017, 14:37

ER

In a certain garden, there are only two types of flowers, Roses, and L

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

mangamma

13 Jun 2019, 00:37

9

3

3,090

by: bumpbot

12 Mar 2023, 10:42

ER

In a certain group of 50 people, how many are doctors who have a law

Sub 505 Level | Overlapping Sets

Sub 505 Level | Overlapping Sets hide tags

1, 2

Bunuel

26 Jun 2017, 02:21

130

20

26,863

by: bumpbot

06 Aug 2023, 13:18

ER

In a certain group of people, the average (arithmetic mean) weight of

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

gmatt1476

21 Sep 2019, 17:17

37

9

12,099

by: bumpbot

01 Oct 2023, 05:03

ER

In a certain group of people, the average weight of the males is 170

555-605 Level | Statistics and Sets Problems, Word Problems

555-605 Level | Statistics and Sets Problems, Word Problems hide tags

Bunuel

22 Aug 2017, 00:16

2

2,392

by: septwibowo

22 Aug 2017, 04:39

ER

In a certain group, the average (arithmetic mean) age of the males is

605-655 Level | Statistics and Sets Problems, Word Problems

605-655 Level | Statistics and Sets Problems, Word Problems hide tags

Bunuel

25 Jul 2018, 04:15

15

5

8,908

by: bumpbot

02 Jun 2024, 05:21

ER

In a certain high school graduating class, 60 percent of the students.

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

Pritishd

19 Oct 2017, 02:39

15

9

4,154

by: bumpbot

17 Dec 2023, 11:40

ER

In a certain high school, how many seniors are enrolled in both AP cal

Sub 505 Level | Overlapping Sets

Sub 505 Level | Overlapping Sets hide tags

Bunuel

01 Feb 2021, 13:50

1

1,253

by: csingh158

27 Feb 2021, 06:23

ER

In a certain high school, there are 31 students who are members of the

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

13 Apr 2018, 01:52

9

2

2,419

by: bumpbot

28 Jan 2024, 22:43

ER

In a certain infinite sequence n, n_{1} = 7, n_{2} = 70, n_{3} = 700 .

655-705 Level | Sequences

655-705 Level | Sequences hide tags

Hoozan

23 Mar 2022, 23:31

13

6

3,888

by: bumpbot

24 Jul 2023, 15:26

ER

In a certain institute, every student studies at least one of two subj

655-705 Level | Overlapping Sets

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Bunuel

10 Jul 2017, 04:27

15

4

2,973

by: nick1816

25 Apr 2019, 08:30

ER

In a certain international contest the winners received only gold and

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

13 May 2021, 00:15

4

1,327

by: Thekingmaker

31 May 2021, 23:33

ER

In a certain Italian recipe book, every recipe that includes oregano a

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

Russ19

18 Oct 2021, 06:33

1

2

1,153

by: babataer1

02 Nov 2021, 03:41

ER

In a certain lab, 60 percent of the researchers have advanced degrees

555-605 Level | Overlapping Sets

555-605 Level | Overlapping Sets hide tags

Bunuel

20 Mar 2024, 01:30

1

503

by: mayankdgmat

20 Mar 2024, 10:50

ER

In a certain law firm there are five senior partners and five junior..

805+ Level | Word Problems

805+ Level | Word Problems hide tags

GKomoku

09 Apr 2020, 11:41

10

3

3,209

by: bumpbot

05 Nov 2022, 21:09

Data Sufficiency (DS)