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

83,484

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

191,627

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

491,540

by: bb

29 Aug 2025, 13:27

ER

If 0 < a < b < c, does the median of a, b, and c equal the mean of a,

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

13 Apr 2018, 01:21

10

6

2,777

by: bumpbot

15 May 2026, 02:42

ER

A playgroup is made up entirely of n pairs of siblings, including the

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

28 Dec 2022, 09:00

13

3

2,537

by: gullyboy09

15 May 2026, 01:52

ER

How long will it take a truck to drive from Cornwall to West?

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

09 May 2017, 03:02

8

5

2,901

by: bumpbot

14 May 2026, 22:59

ER

A "gamma sequence" is defined as an infinite sequence of pos

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Laila12618

26 Aug 2020, 09:06

19

6

3,617

by: bumpbot

14 May 2026, 22:25

ER

Last week Linda and Nancy each worked 40 regular hours at the same

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 04:03

34

6

6,522

by: bumpbot

14 May 2026, 18:49

ER

On a certain week, 950 visitors chose one of weekdays from Monday thro

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

28 Apr 2021, 03:30

13

8

3,105

by: bumpbot

14 May 2026, 18:09

ER

Yesterday Bookstore B sold twice as many softcover books as hardcover

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

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

1, 2

parkhydel

28 Apr 2020, 04:59

435

21

40,660

by: Bunuel

14 May 2026, 12:12

ER

What was the population of City X in 2002 ? (1) X's population in 200

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2019, 07:23

39

9

14,812

by: Bunuel

14 May 2026, 11:50

ER

How old is Jane? (1) Ten years ago she was one-third as old as she is

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2019, 07:21

19

6

12,819

by: Bunuel

14 May 2026, 11:45

ER

Last year Publisher X published 1,100 books, consisting of first editi

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2019, 07:20

21

8

29,294

by: Bunuel

14 May 2026, 11:43

ER

If the 1st term of a sequence is 0 and the 2nd term is 1, is the 5th

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

Bunuel

26 Apr 2019, 01:59

59

17

22,822

by: Bunuel

14 May 2026, 11:42

ER

A certain ski shop sold 125 pairs of skis and 100 pairs of ski boots

Sub 505 (Easy) | Statistics and Sets Problems, Word Problems

Sub 505 (Easy) | Statistics and Sets Problems, Word Problems hide tags

parkhydel

28 Apr 2020, 04:50

23

4

10,856

by: Bunuel

14 May 2026, 11:40

ER

In a sequence of numbers in which each term after the first term is 1

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

Bunuel

30 Aug 2017, 06:02

16

6

11,036

by: bumpbot

14 May 2026, 10:38

ER

At a certain clothing store, customers who buy 2 shirts pay the regula

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2

GMATinsight

22 Apr 2020, 00:53

345

20

52,161

by: bumpbot

14 May 2026, 10:36

ER

Last year in a group of 30 businesses, 21 reported a net profit and 15

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

TomB

05 Mar 2012, 17:27

228

11

46,662

by: bumpbot

14 May 2026, 08:14

ER

In a survey report, each surveyed man was assigned a gender code of

555-605 (Medium) | Statistics and Sets Problems

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

Raxit85

10 Feb 2020, 23:03

2

3

2,384

by: bumpbot

14 May 2026, 08:11

ER

A certain ice cream factory makes two flavors of ice cream: chocolate

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

14 May 2026, 06:10

6

6,818

by: GulfTube

14 May 2026, 06:05

ER

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

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

cmugeria

10 Sep 2010, 15:29

33

7

14,807

by: bumpbot

14 May 2026, 03:13

ER

How long will it take 9 men and 6 women to complete a given task?

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

alphonsa

31 Aug 2014, 04:18

67

11

8,276

by: Gmat860sanskar

13 May 2026, 22:39

ER

A certain company holds an annual Labor day lottery by picking one tic

555-605 (Medium) | Overlapping Sets, Probability

555-605 (Medium) | Overlapping Sets, Probability hide tags

solitaryreaper

24 Feb 2015, 11:18

29

11

8,492

by: bumpbot

13 May 2026, 18:09

ER

What percentage of Debating club members enrolled at a certain school

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

21 Jul 2021, 04:30

2

1,698

by: AbhishekP220108

13 May 2026, 17:33

In a sequence S, each term, after the first term, is obtained by

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

TBT

15 Feb 2023, 21:36

11

3

3,413

by: bumpbot

13 May 2026, 10:01

ER

A certain shipment of identical cans of soup can be packed either into

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

29 Oct 2015, 01:26

13

4

4,182

by: bumpbot

13 May 2026, 08:55

ER

If B is a set of real numbers, is there a number in B that

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

battleprof

23 Apr 2013, 09:46

11

17

8,872

by: bumpbot

13 May 2026, 08:02

ER

A certain company operates a website, Z,

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Brownbatman

20 Nov 2025, 13:40

15

4

2,182

by: eaat

13 May 2026, 07:41

ER

Does it benefit a company overall to invest in employee training?

655-705 (Hard) | Non-Math Related

655-705 (Hard) | Non-Math Related hide tags

1, 2

guddo

13 Aug 2024, 01:26

130

20

12,081

by: GulfTube

13 May 2026, 07:17

ER

In the top ten finishers of a cycling race, 4 were Italians and 8

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

23 Oct 2025, 08:07

78

4

20,901

by: bumpbot

13 May 2026, 07:16

ER

If there is a bag containing less than 30 balls, how many of them are

655-705 (Hard) | Probability, Word Problems

655-705 (Hard) | Probability, Word Problems hide tags

chetan2u

23 Nov 2017, 06:16

12

8

3,299

by: chetan2u

13 May 2026, 04:17

ER

Each of the 45 books on a shelf is written either in English or in Spa

655-705 (Hard) | Overlapping Sets, Probability

655-705 (Hard) | Overlapping Sets, Probability hide tags

AJ1012

23 Dec 2015, 14:16

411

15

55,257

by: bumpbot

13 May 2026, 03:31

ER

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

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Mar 2025, 01:30

3

2

915

by: bumpbot

13 May 2026, 02:26

ER

A jar contains 8 red marbles and y white marbles. If Joan takes 2 rand

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

1, 2

Orange08

26 Sep 2010, 12:55

269

22

48,555

by: bumpbot

12 May 2026, 22:41

ER

The average (arithmetic mean) of the ages of three people, expressed

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

30 Aug 2019, 06:27

3

1,591

by: bumpbot

12 May 2026, 21:43

ER

A bag contains a mixture of beans and pulses. To achieve 20 percent be

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

25 Jun 2017, 04:07

20

10

6,741

by: bumpbot

12 May 2026, 21:28

ER

During a penalty-scored trivia challenge, Sophia worked through a set

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

10 May 2026, 19:00

4

5

379

by: pappal

12 May 2026, 13:04

ER

Chan and Mieko drove separate cars along the entire length of a certai

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

mihir0710

15 May 2017, 02:08

37

4

17,176

by: bumpbot

12 May 2026, 09:18

ER

Jane walked for 4 miles. What was her average speed for the first 2 mi

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

danielwaugh

01 Oct 2007, 22:35

48

18

18,916

by: bumpbot

12 May 2026, 09:16

ER

A pair of skis originally cost $160. After discount of x

555-605 (Medium) | Percent and Interest Problems

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

summer101

27 Mar 2013, 07:14

9

4

7,085

by: bumpbot

11 May 2026, 23:42

ER

Sam and Darren were participating in a cycle race, with each of them

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

27 Nov 2022, 10:15

2

1,546

by: bumpbot

11 May 2026, 23:13

ER

A can complete a piece of work in 10 days. How many days will B take

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

30 Jul 2024, 08:30

5

2

1,499

by: bumpbot

11 May 2026, 10:40

ER

A warehouse manager recorded the weights of all the crates in one

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

10 May 2026, 19:00

3

5

301

by: Adit_

11 May 2026, 07:32

ER

In order to make the national tennis team, Matt

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

jogeshanand

23 Jun 2014, 22:02

93

16

13,427

by: bumpbot

11 May 2026, 06:35

ER

Of the 5 numbers, the largest number is 4 greater than the median. Is

805+ (Hard) | Statistics and Sets Problems

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

amijags

10 Aug 2010, 03:05

46

7

8,576

by: bumpbot

11 May 2026, 05:25

ER

What is the sum of the squares of the three consecutive terms of a geo

705-805 (Hard) | Algebra, Sequences

705-805 (Hard) | Algebra, Sequences hide tags

Bunuel

13 May 2020, 07:58

8

4

3,074

by: bumpbot

11 May 2026, 05:16

ER

A, B, C, D, and E are airline pilots with very busy travel schedules.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

29 Nov 2019, 02:33

3

4,345

by: bumpbot

11 May 2026, 04:53

ER

If x is greater than 105 percent of w, is x > 25?

605-655 (Medium) | Inequalities, Percent and Interest Problems

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

Bunuel

29 Nov 2017, 00:33

13

8

3,097

by: bumpbot

11 May 2026, 04:50

ER

For any integers x and y, min(x, y) and max(x, y) denote the minimum a

655-705 (Hard) | Algebra +2 tags

655-705 (Hard) | Algebra, Functions and Custom Characters, Min-Max Problems hide tags

saswata4s

22 Mar 2018, 19:33

50

10

7,963

by: bumpbot

11 May 2026, 01:09

ER

There is at least one viper and at least one cobra in Pandora's box.

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

10 Jul 2025, 10:32

60

9

7,273

by: NidhiYad

11 May 2026, 00:04

ER

If "x" denotes the greatest integer less than or equal to x

655-705 (Hard) | Functions and Custom Characters, Sequences

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

jfdelgado

21 May 2018, 10:00

16

10

5,535

by: bumpbot

10 May 2026, 23:30

ER

Last month Alex spent $91 on video game rentals, spending $5 for each

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

MclLaurent

30 Dec 2023, 03:05

72

7

15,392

by: crimson_noise

10 May 2026, 09:00

ER

Of the students in a certain math class, each student either is a math

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

12 Aug 2024, 01:30

8

4

1,706

by: bumpbot

10 May 2026, 08:51