GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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

Bunuel

25 Oct 2022, 08:11

183

15

83,477

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,602

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

491,521

by: bb

29 Aug 2025, 13:27

ER

Each M-type unit will increase the base memory capacity of a certain

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

01 Oct 2015, 01:51

50

6

13,424

by: bumpbot

20 May 2026, 17:43

ER

What is the distance from town A to town B?

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

manhattan187

28 Oct 2015, 14:31

31

7

8,996

by: bumpbot

20 May 2026, 05:12

ER

Company X's profits this year increased by 25% over last year's profit

555-605 (Medium) | Percent and Interest Problems, Word Problems

555-605 (Medium) | Percent and Interest Problems, Word Problems hide tags

1, 2

Bunuel

02 Aug 2018, 23:42

186

21

31,027

by: Ishaan30

20 May 2026, 03:00

ER

Out of a stock of 10 microphones, an electronics store sold more than

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

MT1302

20 Mar 2024, 08:25

13

11

4,556

by: bumpbot

20 May 2026, 01:06

ER

Vanda's butcher shop sells packages of ground turkey and ground beef.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

12 Jan 2022, 07:00

5

3

2,799

by: bumpbot

20 May 2026, 00:55

ER

What percent of the visitors to a certain zoo visited the lions cage?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

13 Jan 2023, 02:30

3

4

1,374

by: bumpbot

20 May 2026, 00:41

ER

A box contains 10 light bulbs, fewer than half of which are defective.

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

1, 2

marcodonzelli

20 Nov 2023, 08:14

456

27

68,631

by: Usernamevisible

19 May 2026, 23:32

ER

What is the ratio of the number of boys to the number of girls

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

24 Jun 2024, 01:30

8

4

1,283

by: Edskore

19 May 2026, 11:51

ER

The GMAT is scored on a scale of 200 to 800 in 10 point incr

805+ (Hard) | Statistics and Sets Problems, Word Problems

805+ (Hard) | Statistics and Sets Problems, Word Problems hide tags

1, 2

enigma123

15 Apr 2026, 11:36

404

22

35,736

by: Usernamevisible

19 May 2026, 10:20

ER

Hollywood starlets Ashlee and Britnee each has an entourage

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

RohitKalla

22 Jul 2011, 11:40

65

8

10,181

by: bumpbot

19 May 2026, 08:46

ER

Four men and three women make up a seven-member committee

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

TheGerman

13 Sep 2017, 08:15

72

8

21,979

by: bumpbot

19 May 2026, 08:42

ER

Each of the 30 students in a class is either male or female, and has

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

09 Jan 2025, 01:30

6

3

1,733

by: bumpbot

19 May 2026, 07:41

ER

There are 5 employees in a team and all of them do not have equal sala

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

GMATinsight

04 May 2019, 02:44

11

2

2,073

by: bumpbot

19 May 2026, 07:10

ER

In an arithmetic sequence, if a5 = 16 and d = an an1, what is the v

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Bunuel

04 May 2022, 06:00

7

3

2,620

by: bumpbot

19 May 2026, 05:58

16 numbers (not necessarily distinct) are filled in the 4x4 square gri

805+ (Hard) | Combinations, Number Properties

805+ (Hard) | Combinations, Number Properties hide tags

nick1816

06 Apr 2020, 19:49

27

9

7,492

by: bumpbot

19 May 2026, 03:29

ER

What percentage of steel workers in the country earns over $

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

r019h

21 Aug 2007, 20:50

13

9

6,246

by: bumpbot

19 May 2026, 02:58

ER

An arithmetic sequence is a sequence in which each term after the firs

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

Bunuel

22 May 2020, 01:26

16

8

3,169

by: bumpbot

19 May 2026, 02:54

ER

The cardinality of a finite set is the number of elements in the set.

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

gmatt1476

21 Sep 2019, 15:15

377

12

34,691

by: Usernamevisible

19 May 2026, 02:01

ER

Is the product of all of the elements in Set S negative?

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

rdevorse

17 Jan 2012, 17:57

62

13

13,493

by: Usernamevisible

18 May 2026, 23:44

ER

A candy manufacturer decided to decrease the weight of each candy bar,

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 Jan 2016, 03:21

13

11

6,437

by: bumpbot

18 May 2026, 22:51

ER

Does the average of a, b, and c equal c ? (1) c - a = c + b (2) c = 0

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

Bunuel

08 Nov 2019, 03:56

11

3

4,898

by: bumpbot

18 May 2026, 20:39

ER

Three teams, A, B and C each have five members. The three teams compet

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

11 May 2016, 00:16

11

7

8,187

by: gttngthr26

18 May 2026, 14:02

ER

How many people received a certain survey?

Sub 505 (Easy) | Fractions and Ratios, Word Problems

Sub 505 (Easy) | Fractions and Ratios, Word Problems hide tags

Bunuel

16 Oct 2019, 08:13

5

6

6,361

by: Shreya0308

18 May 2026, 11:50

ER

From 1985 to 1994, what was the percent increase in total Un

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Phoenix72

13 Sep 2013, 04:39

20

9

14,737

by: Shreya0308

18 May 2026, 11:49

ER

Mike recently won a contest in which he will have the opport

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

1, 2

ctrlaltdel

19 Sep 2013, 05:09

179

32

28,779

by: bumpbot

18 May 2026, 09:27

ER

At least 200 employees at a certain company play football. If 5 percen

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

19 Dec 2019, 02:47

12

3

3,189

by: bumpbot

18 May 2026, 07:54

ER -2

A team of workers including Tom and Dick work in the same office

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

23 Jan 2026, 09:15

2

4

657

by: Stella5200

18 May 2026, 06:51

ER

What was Jean's insurance premium in 1995 ?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

11 Jun 2019, 03:14

13

4

12,730

by: bumpbot

18 May 2026, 05:21

ER

A candle company determines that, for a certain specialty candle, the

555-605 (Medium) | Coordinate Plane +2 tags

555-605 (Medium) | Coordinate Plane, Functions and Custom Characters, Word Problems hide tags

Bunuel

03 Jul 2016, 10:47

153

18

31,971

by: Usernamevisible

18 May 2026, 02:08

ER

The value of Machine 1 depreciates x% per year and the value of Machin

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

edwin.que

01 Nov 2023, 22:30

73

7

13,572

by: KarishmaB

18 May 2026, 01:05

ER

Are at least 10% of the employees at ABC Corporation who are

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

tusharGupta1

06 Dec 2013, 09:16

10

6

6,315

by: bumpbot

18 May 2026, 00:20

ER

What was the ratio of the number of shares of stock X to shares of

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

20 Jan 2025, 01:30

2

4

1,376

by: bumpbot

17 May 2026, 20:42

ER

Daily temperatures were recorded for a certain period of time. Did at

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

17 Jun 2022, 19:30

1

2

1,442

by: bumpbot

17 May 2026, 10:31

ER

A series of 5 numbers is 3, 4, 5, 5, x, is the range greater than 2?

805+ (Hard) | Statistics and Sets Problems

805+ (Hard) | Statistics and Sets Problems hide tags

144144

06 Jun 2011, 11:53

16

6

7,858

by: bumpbot

17 May 2026, 04:10

If a, b, c, d are four integers such that a < b < c < d, Is d-c = c-b

705-805 (Hard) | Number Properties, Statistics and Sets Problems

705-805 (Hard) | Number Properties, Statistics and Sets Problems hide tags

amanvermagmat

28 Jun 2018, 11:41

8

3

2,709

by: bumpbot

17 May 2026, 04:00

ER

At a certain auto dealership, 500 cars were sold last week.

805+ (Hard) | Min-Max Problems

805+ (Hard) | Min-Max Problems hide tags

Nevernevergiveup

27 Jul 2016, 05:04

56

10

8,809

by: bumpbot

17 May 2026, 03:04

In an election four parties A, B, C and D contested for a post. 40% of

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Adityachopra1

05 Aug 2023, 00:35

4

2,175

by: bumpbot

17 May 2026, 01:51

ER

Q is a set of integers and 11 is in Q. Let Q denote any element in the

705-805 (Hard) | Multiples and Factors, Statistics and Sets Problems

705-805 (Hard) | Multiples and Factors, Statistics and Sets Problems hide tags

Bunuel

30 Jun 2022, 15:15

7

2

1,621

by: bumpbot

17 May 2026, 01:48

ER

A solution consists of only water and alcohol such that the ratio of

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

EgmatQuantExpert

22 Jan 2017, 02:24

53

7

11,297

by: ShreyaMittal1609

17 May 2026, 00:47

ER

The ratio of water and ammonia in solution A is 1 : 4; the ratio of

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

02 Jan 2025, 01:30

9

3

2,147

by: bumpbot

16 May 2026, 09:10

ER

An artist creates mosaics using stone tiles provided by his clients.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

22 Sep 2021, 02:00

21

7

3,993

by: bumpbot

16 May 2026, 07:46

ER

GMAT Club Olympics 2024 (Day 5): There are two teams in a chess

805+ (Hard) | Combinations, Fractions and Ratios

805+ (Hard) | Combinations, Fractions and Ratios hide tags

Bunuel

12 Jul 2024, 07:00

43

9

7,576

by: bumpbot

15 May 2026, 22:24

ER

What is the sum of the terms in a sequence of consecutive integers?

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

19 May 2021, 06:00

1

3

2,942

by: bumpbot

15 May 2026, 22:06

ER

A merchant discounted the sale price of a coat and the sale price of a

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

16 Oct 2018, 02:19

21

3

4,516

by: bumpbot

15 May 2026, 20:46

ER

If x is a positive integer, is x<16?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

shapla

12 Jan 2016, 09:34

39

11

21,616

by: Bunuel

15 May 2026, 07:50

ER

Is the sum of all the terms in a sequence of positive integers an odd

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

23 May 2020, 07:13

47

13

10,174

by: bumpbot

15 May 2026, 07:22

ER

If ⊙ denotes a mathematical operation, does x⊙y = y⊙x for all x and y?

555-605 (Medium) | Arithmetic, Functions and Custom Characters

555-605 (Medium) | Arithmetic, Functions and Custom Characters hide tags

Bunuel

10 Aug 2017, 01:41

228

15

27,798

by: bumpbot

15 May 2026, 07:10

In a class, teacher decides to choose two students for a certain exper

555-605 (Medium) | Arithmetic, Combinations

555-605 (Medium) | Arithmetic, Combinations hide tags

amanvermagmat

05 Jun 2018, 11:56

22

4

7,902

by: bumpbot

15 May 2026, 07:07

ER

Are at least 80 percent of the people in Country X

605-655 (Medium) | Statistics and Sets Problems, Word Problems

605-655 (Medium) | Statistics and Sets Problems, Word Problems hide tags

metallicafan

30 Apr 2012, 18:18

24

8

8,601

by: bumpbot

15 May 2026, 03:22

ER

In each of five taste tests, each of 51 participants chose either Bran

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

21 Sep 2021, 01:30

5

3

2,250

by: bumpbot

15 May 2026, 03:15