GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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

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Bunuel

25 Oct 2022, 08:11

189

15

89,133

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of June 2026

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1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,288

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

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bb

23 Aug 2026, 13:03

1.6k

1

496,303

by: bb

23 Aug 2026, 13:01

ER

If Machine X can produce 80 widgets in 4 hours, how long would it take

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

17 Feb 2016, 03:39

7

5

5,043

by: bumpbot

22 May 2026, 07:09

ER

At the beginning of the month, a clothing store had 5 shirts for every

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

30 Apr 2025, 05:49

6

3

1,950

by: bumpbot

22 May 2026, 03:57

ER

Can regular exercise reduce the risk of chronic diseases?

Sub 505 (Easy) | Non-Math Related

Sub 505 (Easy) | Non-Math Related hide tags

guddo

14 Aug 2024, 09:38

13

9

4,695

by: Usernamevisible

22 May 2026, 02:54

ER

John and Tom leave the school at the same time to each of their houses

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

MathRevolution

13 Feb 2017, 01:00

13

6

5,235

by: bumpbot

22 May 2026, 02:17

ER

Will the interest earned on an investment of $4360 in fund X be

605-655 (Medium) | Percent and Interest Problems

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

Bunuel

24 Jan 2026, 05:45

4

1

789

by: AllisonBell

21 May 2026, 09:12

ER

Set T consists of a certain number of even integers divisible by 3. Is

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

jeetparicha85

30 Mar 2022, 04:01

18

5

8,565

by: bumpbot

21 May 2026, 07:59

ER

In the fraction x/y, where x and y are positive integers, what is the

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

Bunuel

04 Jan 2021, 04:02

234

13

37,959

by: Bunuel

21 May 2026, 07:01

An activist club is advocating against the opening of Walmart in

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

Bunuel

06 Nov 2024, 01:31

17

7

1,656

by: bumpbot

20 May 2026, 21:57

ER

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

555-605 (Medium) | Word Problems

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Bunuel

01 Oct 2015, 01:51

53

6

13,761

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

9,206

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

190

21

31,630

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

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MT1302

20 Mar 2024, 08:25

13

11

4,748

by: bumpbot

20 May 2026, 01:06

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

555-605 (Medium) | Word Problems

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Bunuel

12 Jan 2022, 07:00

5

3

2,881

by: bumpbot

20 May 2026, 00:55

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

1,436

by: bumpbot

20 May 2026, 00:41

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

9

4

1,387

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

417

22

36,131

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

72

8

10,365

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

75

8

22,304

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

10

3

1,957

by: bumpbot

19 May 2026, 07:41

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

12

2

2,176

by: bumpbot

19 May 2026, 07:10

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

3,077

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

7,600

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

6,389

by: bumpbot

19 May 2026, 02:58

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

391

12

35,180

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

64

13

13,703

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

16

11

6,527

by: bumpbot

18 May 2026, 22:51

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

12

3

5,152

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

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Bunuel

11 May 2016, 00:16

11

7

8,297

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

6,685

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

21

9

14,997

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

180

32

29,023

by: bumpbot

18 May 2026, 09:27

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

13

3

3,319

by: bumpbot

18 May 2026, 07:54

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

12,939

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

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Bunuel

03 Jul 2016, 10:47

157

18

32,434

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

76

7

13,971

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

6,406

by: bumpbot

18 May 2026, 00:20

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

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Jan 2025, 01:30

2

4

1,469

by: bumpbot

17 May 2026, 20:42

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

1,510

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

8,489

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

10

3

2,797

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

8,975

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

2,270

by: bumpbot

17 May 2026, 01:51

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

1,716

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

55

7

11,536

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

2,318

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

4,090

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

7,846

by: bumpbot

15 May 2026, 22:24

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

3,143

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

4,629

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

40

11

21,931

by: Bunuel

15 May 2026, 07:50