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

496,302

by: bb

23 Aug 2026, 13:01

ER

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

555-605 (Medium) | Sequences

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Bunuel

23 May 2020, 07:13

49

13

10,388

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

233

15

28,202

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

27

4

8,101

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

25

8

8,875

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

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Bunuel

21 Sep 2021, 01:30

5

3

2,305

by: bumpbot

15 May 2026, 03:15

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

11

6

2,880

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

14

3

2,695

by: gullyboy09

15 May 2026, 01:52

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

3,018

by: bumpbot

14 May 2026, 22:59

ER

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

605-655 (Medium) | Sequences

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Laila12618

26 Aug 2020, 09:06

21

6

3,880

by: bumpbot

14 May 2026, 22:25

ER

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

555-605 (Medium) | Word Problems

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guddo

24 Jan 2024, 04:03

35

6

6,849

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

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Bunuel

28 Apr 2021, 03:30

13

8

3,178

by: bumpbot

14 May 2026, 18:09

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

42

9

15,133

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

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Bunuel

26 Apr 2019, 07:21

20

6

13,116

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

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Bunuel

26 Apr 2019, 07:20

21

8

29,546

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

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Bunuel

26 Apr 2019, 01:59

60

17

23,121

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

11,119

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

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Bunuel

30 Aug 2017, 06:02

16

6

11,309

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

364

20

52,938

by: bumpbot

14 May 2026, 10:36

ER

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

555-605 (Medium) | Statistics and Sets Problems

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Raxit85

10 Feb 2020, 23:03

2

3

2,460

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

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Bunuel

14 May 2026, 06:10

6

6,927

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

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cmugeria

10 Sep 2010, 15:29

33

7

15,053

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

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alphonsa

31 Aug 2014, 04:18

72

11

8,450

by: FrozenDragon

13 May 2026, 22:39

ER

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

605-655 (Medium) | Overlapping Sets, Probability

605-655 (Medium) | Overlapping Sets, Probability hide tags

solitaryreaper

24 Feb 2015, 11:18

33

11

8,837

by: bumpbot

13 May 2026, 18:09

ER

What percentage of Debating club members enrolled at a certain school

555-605 (Medium) | Overlapping Sets

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Bunuel

21 Jul 2021, 04:30

2

1,773

by: AbhishekP220108

13 May 2026, 17:33

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

805+ (Hard) | Sequences

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TBT

15 Feb 2023, 21:36

15

3

3,699

by: bumpbot

13 May 2026, 10:01

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

4,313

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

8,996

by: bumpbot

13 May 2026, 08:02

ER

A certain company operates a website, Z,

555-605 (Medium) | Word Problems

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Brownbatman

20 Nov 2025, 13:40

21

4

2,718

by: eaat

13 May 2026, 07:41

ER

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

705-805 (Hard) | Overlapping Sets

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Bunuel

23 Oct 2025, 08:07

80

4

21,333

by: bumpbot

13 May 2026, 07:16

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

555-605 (Medium) | Word Problems

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Bunuel

07 Mar 2025, 01:30

3

2

994

by: bumpbot

13 May 2026, 02:26

ER

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

555-605 (Medium) | Word Problems

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Bunuel

30 Aug 2019, 06:27

3

1,687

by: bumpbot

12 May 2026, 21:43

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

555-605 (Medium) | Mixture Problems

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Bunuel

25 Jun 2017, 04:07

20

10

6,856

by: bumpbot

12 May 2026, 21:28

ER

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

655-705 (Hard) | Word Problems

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Bunuel

10 May 2026, 19:00

4

5

495

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

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mihir0710

15 May 2017, 02:08

37

4

17,427

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

19,233

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

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summer101

27 Mar 2013, 07:14

9

4

7,215

by: bumpbot

11 May 2026, 23:42

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

555-605 (Medium) | Distance and Speed Problems

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Bunuel

27 Nov 2022, 10:15

2

1,659

by: bumpbot

11 May 2026, 23:13

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

1,585

by: bumpbot

11 May 2026, 10:40

ER

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

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

Bunuel

05 Aug 2026, 12:21

3

5

429

by: Adit_

11 May 2026, 07:32

ER

In order to make the national tennis team, Matt

805+ (Hard) | Probability

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jogeshanand

23 Jun 2014, 22:02

95

16

13,527

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

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amijags

10 Aug 2010, 03:05

46

7

8,674

by: bumpbot

11 May 2026, 05:25

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

9

4

3,211

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

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Bunuel

29 Nov 2019, 02:33

4

3

4,460

by: bumpbot

11 May 2026, 04:53

ER

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

655-705 (Hard) | Inequalities, Percent and Interest Problems

655-705 (Hard) | Inequalities, Percent and Interest Problems hide tags

Bunuel

29 Nov 2017, 00:33

13

8

3,252

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

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saswata4s

22 Mar 2018, 19:33

52

10

8,244

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

67

9

7,839

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

19

10

6,018

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

77

7

15,925

by: crimson_noise

10 May 2026, 09:00

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

655-705 (Hard) | Overlapping Sets

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Bunuel

12 Aug 2024, 01:30

8

4

1,859

by: bumpbot

10 May 2026, 08:51

ER

1/3 of golfers also play tennis, 3/5 of tennis players also surf. 4/7

805+ (Hard) | Fractions and Ratios +2 tags

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NikkiL

01 Jan 2021, 00:29

41

7

7,633

by: Adit_

10 May 2026, 08:14