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

178

15

78,885

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,619

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

488,092

by: bb

29 Aug 2025, 13:27

ER

How many marbles does Kevin have? (1) If Kevin had 10 fewer marbles

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

22 Sep 2025, 00:43

4

402

by: Souradeep17

22 Sep 2025, 17:25

ER

How many marbles does Karl have? (1) Karl has 6 more marbles than Jen

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

30 Nov 2023, 02:30

1

790

by: T4Star

30 Nov 2023, 10:49

How many marbles does Doug have?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

amathews

13 Apr 2017, 15:39

60

5

10,070

by: bumpbot

24 Jun 2024, 10:30

ER

How many marbles are in bowl S? (1) If 1/4 of the marbles were remove

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

25 Mar 2024, 01:30

7

1

1,323

by: Nidzo

25 Mar 2024, 07:26

ER

How many male teachers in a school of 80 teachers have masters degree?

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

28 Apr 2021, 04:00

1

1,281

by: TestPrepUnlimited

28 Apr 2021, 12:24

ER

How many machines, working simultaneously at identical constant rates

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

20 May 2024, 01:30

7

1

1,128

by: prantorboni

20 May 2024, 02:55

ER

How many liters of apple juice were added to the cranberry juice in a

Sub 505 (Easy) | Mixture Problems

Sub 505 (Easy) | Mixture Problems hide tags

Aim800score

09 Dec 2017, 07:18

6

3

14,474

by: bumpbot

17 Jun 2025, 23:44

ER

How many lemon trees are there in Mr Batra's garden? (1) Each tree gi

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

kawal27

20 Dec 2020, 04:39

4

2

2,445

by: bumpbot

20 May 2023, 22:18

ER

How many kilometers is the flight from city A to city B? (1) Traveling

505-555 (Easy) | Distance and Speed Problems

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

Bunuel

23 Apr 2018, 21:47

2

4

2,146

by: push12345

09 May 2018, 19:51

ER

How many kilometers does a bullet train travel to get from Tokyo to Ky

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

Bunuel

13 Feb 2019, 00:11

1

1,776

by: Archit3110

13 Feb 2019, 04:25

ER

How many kiloliters of water are in a reservoir?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

17 Mar 2025, 00:30

5

1,383

by: Harshita2003

25 Jul 2025, 13:52

ER

How many intersects with x-axis does y = x^2 + 2qx + r have ?

655-705 (Hard) | Algebra, Coordinate Plane

655-705 (Hard) | Algebra, Coordinate Plane hide tags

Bunuel

29 Mar 2017, 05:31

24

9

4,220

by: bumpbot

18 Jul 2023, 16:23

ER

How many integers, N, exist such that x < N < x + 12 where N is a mult

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

28 Aug 2018, 05:24

5

4

4,479

by: nick1816

27 Mar 2020, 14:38

ER

How many integers n are there such that r < n < s ?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

29 Sep 2010, 07:05

298

18

42,258

by: totaltestprepNick

04 Mar 2026, 11:35

How many integers n are there such that a < n < b ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Carcass

08 Sep 2022, 00:36

4

3

1,546

by: bumpbot

22 Apr 2024, 09:31

ER

How many integers n are there such that a > n > b ?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

25 Nov 2014, 08:27

19

8

5,588

by: bumpbot

18 Oct 2023, 09:56

ER

How many integers n are there such than v < n < w ?

555-605 (Medium) | Arithmetic, Number Properties

555-605 (Medium) | Arithmetic, Number Properties hide tags

BN1989

14 Jun 2019, 03:47

42

5

9,929

by: Bunuel

19 Jun 2016, 09:33

ER

How many integers k are there such that x < k < y?

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

BrentGMATPrepNow

21 Jan 2020, 07:11

29

3

3,743

by: bumpbot

09 May 2024, 04:14

ER

How many integers in a set of 5 consecutive positive integers are

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

11 Nov 2023, 03:06

1

2

1,267

by: Bunuel

19 Nov 2023, 08:00

ER

How many integers are there between, but not including, integers r and

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

1, 2

Bunuel

15 Oct 2012, 04:51

73

27

32,039

by: totaltestprepNick

04 Mar 2026, 11:31

ER

How many integers are there between, but not including, integers a and

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

29 Sep 2021, 01:30

1

4

2,128

by: CrackverbalGMAT

05 Oct 2021, 01:01

ER

How many integers are there between integers i and k, inclusive?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

29 Aug 2019, 23:39

4

10

4,724

by: Bunuel

31 Aug 2019, 07:24

ER

How many integers are there between C and D? (1) Neither c

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

guygmat

18 Jun 2011, 04:23

41

11

10,703

by: bumpbot

27 Mar 2025, 03:08

ER

How many integers are greater than x, but less than y?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

25 Nov 2014, 08:26

21

8

8,215

by: bumpbot

21 Jul 2025, 03:29

How many integer values of x satisfy the equation |x-3|+|x-k|<c?

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

Kinshook

09 Jul 2019, 01:53

2

4

1,548

by: aarkay

11 Jul 2019, 13:51

ER

How many in a group are women with blue eyes

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

vikasp99

01 Mar 2017, 06:25

1

3

2,923

by: bumpbot

25 Oct 2021, 01:41

ER

How many ice cubes can be accommodated in a container? I.The length an

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Sajjad1994

08 Feb 2017, 01:04

1

2

2,016

by: 0akshay0

08 Feb 2017, 00:54

ER

How many hours would it take Pump A and Pump B working together, each

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

AbdurRakib

01 Jul 2016, 04:45

323

14

58,198

by: Aboyhasnoname

18 Sep 2025, 19:16

ER

How many hours will it take 6 identical machines, working at their con

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

Bunuel

02 Apr 2018, 22:03

6

7

3,993

by: bumpbot

06 Nov 2023, 06:31

ER

How many hours were Fran and Fred away from home? (1) They left at 9.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

25 Apr 2025, 00:30

3

2

930

by: Ayeka

26 Apr 2025, 11:01

ER

How many hours long is time period T ? (1) T begins at 12:01 A.M. on

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

27 Aug 2022, 16:45

5

3

1,688

by: Bunuel

17 Mar 2026, 02:43

ER

How many hours does it take 12 machines with identical production rate

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

17 Dec 2014, 07:58

16

13

9,712

by: bumpbot

16 Sep 2025, 03:43

ER

How many hours did Suresh travel yesterday?

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

SVaidyaraman

19 Mar 2013, 23:11

43

12

7,071

by: bumpbot

18 May 2025, 09:35

ER

How many hours did it take Helen to drive from her house to her parent

505-555 (Easy) | Distance and Speed Problems

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

changhiskhan

26 Mar 2010, 17:00

81

14

34,554

by: bumpbot

29 Nov 2025, 10:18

ER

How many hours did it take Dale to drive from A-town to B-town?

555-605 (Medium) | Distance and Speed Problems

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

shrive555

20 Dec 2011, 07:47

54

8

16,402

by: bumpbot

24 Jun 2025, 22:06

ER

How many guests were present at the party?

505-555 (Easy) | Combinations

505-555 (Easy) | Combinations hide tags

Bunuel

06 Apr 2020, 02:15

19

11

9,216

by: bumpbot

18 Jun 2025, 11:28

ER

How many girls are there in the class of 20?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 May 2024, 01:30

3

4

1,341

by: Purnank

29 May 2024, 04:23

ER

How many girls are members of both the Math Club and the Chess Club?

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

13 Jul 2023, 01:30

6

2

2,106

by: bumpbot

23 Sep 2024, 08:03

ER

How many girls are members of both the Diving Team and the Swim Team?

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

11 Nov 2025, 00:43

4

3

654

by: pappal

11 Nov 2025, 11:47

ER

How many girls are in the chess club? (1) The chess club has a total

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

04 Mar 2019, 23:51

2

1,493

by: Archit3110

05 Mar 2019, 08:58

ER

How many gallons of water should be added to make the

805+ (Hard) | Mixture Problems

805+ (Hard) | Mixture Problems hide tags

MichelleSavina

22 Jan 2011, 09:33

62

17

12,626

by: bumpbot

27 Apr 2025, 01:26

ER

How many gallons of a chemical can be stored in a cylindrical tank if

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

22 Oct 2017, 06:51

6

3

1,788

by: Aim800score

26 Oct 2017, 07:00

ER

How many fruits did each girl get if fruits are divided in two parts

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

18 Jun 2022, 23:30

2

1,513

by: bumpbot

02 Jan 2025, 07:14

ER

How many first graders have loose teeth?

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

30 Oct 2025, 00:13

2

455

by: Dereno

30 Oct 2025, 09:56

ER

How many families in the town of Windsor have exactly one car?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

18 Jan 2026, 13:15

2

1

315

by: vaibhavjoshi1202

28 Feb 2026, 22:36

ER

How many families in Jaytown own exactly two phones? (1) 150 families

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

14 Mar 2025, 00:30

4

2

660

by: Missinga

14 Mar 2025, 09:26

ER

How many factors does y have?

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

Bunuel

13 Jan 2017, 07:06

15

7

4,191

by: bumpbot

07 Feb 2025, 10:43

ER

How many factors does x have, if x is a positive integer ?

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

17 Nov 2014, 12:29

31

15

9,640

by: bumpbot

22 Mar 2022, 09:56

ER

How many factors does the number X have?

Sub 505 (Easy) | Multiples and Factors, Number Properties

Sub 505 (Easy) | Multiples and Factors, Number Properties hide tags

EgmatQuantExpert

13 Aug 2018, 02:04

3

4,357

by: AkshdeepS

27 Mar 2018, 06:36

ER

How many factors does the number A have? 1) A is divisible by 43

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

GMATBusters

11 May 2018, 11:38

2

6

2,181

by: sumit411

28 Aug 2018, 08:43