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

176

15

78,873

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

856

24

188,614

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

488,058

by: bb

29 Aug 2025, 13:27

ER

If z is a positive integer, is z + 1 a factor of 105?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

d999

11 Mar 2020, 02:55

15

3

4,443

by: bumpbot

13 Apr 2024, 01:44

ER

Is q divisible by 6?

555-605 (Medium) | Multiples and Factors, Number Properties

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

d999

11 Mar 2020, 01:44

4

2,700

by: bumpbot

08 Oct 2023, 00:38

If x is an integer, what is the value of x?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

d999

20 Mar 2020, 01:21

1

3

6,901

by: bumpbot

11 Jun 2023, 06:48

ER

A certain cube is divided into n smaller cubes. What is the perimeter

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

d999

11 Mar 2020, 02:49

2

4

3,320

by: kevsaf95

05 Nov 2022, 17:14

ER

Each employee who works in company X works in exactly one of

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

d999

09 Mar 2020, 09:42

5

3

4,594

by: SaquibHGMATWhiz

17 Oct 2022, 01:29

ER

A ring of paint that is w units wide completely divides a circular

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

d999

09 Mar 2020, 09:35

12

4

3,236

by: bumpbot

25 Feb 2022, 17:56

ER

If z is an integer, is Z/4 also an integer?

555-605 (Medium) | Multiples and Factors, Number Properties

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

d999

11 Mar 2020, 02:46

1

1,949

by: BrentGMATPrepNow

11 Mar 2020, 06:41

If x and w are integers, is (x + w)^2 odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

D33T

24 Dec 2021, 21:47

1

2

2,097

by: bumpbot

23 Aug 2023, 15:17

ER

In the rectangular coordinate system, lines m and n intersec

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

d.rouleau

14 May 2014, 00:36

18

8

7,006

by: bumpbot

08 Apr 2022, 10:45

ER

A student has decided to take GMAT and TOEFL examinations

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

1, 2

cyberjadugar

19 Jun 2012, 08:52

275

33

30,299

by: bumpbot

12 Dec 2025, 13:31

ER

Is a even? (1) 2a is even. (2) a^(1/2) is even.

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

cyberjadugar

28 May 2023, 11:29

24

12

8,709

by: bumpbot

24 Nov 2024, 00:47

ER

What is the area of circle passing points A, B & C (in the

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

cyberjadugar

27 Jun 2012, 04:09

4

14

4,261

by: djmobley

02 Oct 2019, 21:09

a, b and c are integers such that a < b < c. Do they have a

805+ (Hard) | Statistics and Sets Problems

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

cyberjadugar

09 Jun 2012, 12:04

3

2

3,328

by: mika84

22 Jun 2015, 14:06

ER

p and q are different two-digit prime numbers with the same

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

cvsmech

28 Sep 2011, 14:06

41

9

33,889

by: Bunuel

08 Sep 2013, 07:00

ER

Is xy greater than 1, if x and y are both positive

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

cv3t3l1na

23 Nov 2012, 08:41

4

3

5,088

by: bumpbot

04 Aug 2023, 02:07

ER

If a^2=b, is the value of a between 0 and 1?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

cv3t3l1na

01 Dec 2012, 05:59

14

8

5,445

by: bumpbot

30 Jun 2021, 13:58

ER

If x is a positive integer, is the remainder 0 when (3^x + 1)/10?

605-655 (Medium) | Number Properties, Remainders

605-655 (Medium) | Number Properties, Remainders hide tags

curtis0063

02 Jan 2013, 09:00

16

17

7,812

by: bumpbot

02 Dec 2022, 03:00

ER

What was the average (arithmetic mean) monthly rainfall

505-555 (Easy) | Statistics and Sets Problems, Word Problems

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

Curly05

22 Jul 2003, 20:36

19

6

13,347

by: bumpbot

13 Jun 2025, 21:50

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To earn grade B in her class Deepthi must have an average

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Poor Quality hide tags

cumulonimbus

22 Mar 2014, 00:46

6

11

4,221

by: Bunuel

29 Aug 2022, 11:10

ER

There are 3 different positive integers.

705-805 (Hard) | Min-Max Problems

705-805 (Hard) | Min-Max Problems hide tags

cuhmoon

31 Jan 2016, 22:55

82

9

15,717

by: cuhmoon

31 Jan 2016, 22:55

ER

If x is an integer, is x|x|<2^x ?

Sub 505 (Easy) | Absolute Values +2 tags

Sub 505 (Easy) | Absolute Values, Algebra, Inequalities hide tags

1, 2

cucrose

17 Jan 2007, 16:27

140

26

57,127

by: poojaarora1818

24 Feb 2026, 11:32

ER

If x, y, and z are positive integers, where x > y and

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

ctrlaltdel

13 Jun 2013, 05:51

61

12

8,812

by: bumpbot

30 Aug 2025, 03:17

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

173

31

28,582

by: SudsMeister

04 May 2025, 01:41

ER

Nina and Teri are playing a dice game. Each girl rolls a

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

ctrlaltdel

15 Nov 2009, 22:17

35

9

12,472

by: bumpbot

30 Aug 2023, 08:26

ER

Is x^2+y^2 divisible by 5?

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Poor Quality hide tags

ctrlaltdel

14 Nov 2009, 18:56

35

13

15,947

by: deeuk

10 Nov 2014, 01:27

ER

If x and y are positive integers, what is the value of xy?

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

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

ctgmat123

30 Jun 2012, 05:29

319

19

110,796

by: totaltestprepNick

23 Feb 2026, 12:55

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What is the value of x ?

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cssk

05 Jan 2014, 10:35

3

2,801

by: cssk

05 Jan 2014, 10:55

A technology company purchased software licenses at a base price and

705-805 (Hard) | Percent and Interest Problems, Word Problems

705-805 (Hard) | Percent and Interest Problems, Word Problems hide tags

Crocs12

04 Oct 2025, 12:02

6

1

761

by: gmatophobia

04 Oct 2025, 13:35

ER

Quadrilateral ABCD is a rhombus and points C, D, and E are

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

crejoc

19 Jan 2013, 04:44

227

37

62,203

by: bumpbot

13 Feb 2023, 02:36

ER

Is a > 10?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Creeper300

07 Nov 2010, 13:45

12

5

3,273

by: bumpbot

04 Jan 2026, 03:26

ER

a, and b are integers, is a factor of b?

555-605 (Medium) | Multiples and Factors, Number Properties

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

Creeper300

05 Nov 2010, 09:45

10

6

11,131

by: bumpbot

09 Dec 2025, 12:11

ER

Is a^2 + a > -b^2?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Creeper300

07 Nov 2010, 13:39

9

7

4,538

by: bumpbot

25 Sep 2019, 05:20

ER

Z is a two digit positive integer, Z is equal to 7 times the sum of it

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Creeper300

05 Nov 2010, 09:41

6

10

4,668

by: bumpbot

05 Apr 2019, 00:18

ER

ab = 0?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Creeper300

07 Nov 2010, 13:49

11

3

4,467

by: MathRevolution

24 Nov 2017, 16:25

ER

Is a/b < 2?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Creeper300

07 Nov 2010, 13:41

3

2

3,284

by: bumpbot

19 Oct 2017, 04:08

ER

Is a/b >0? (1) ab > 0 (2) b/a > 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Creeper300

07 Nov 2010, 13:40

3

2

4,138

by: LogicGuru1

18 Jul 2016, 04:13

ER

is (a-b)/c >0? 1. a>b, b<c 2. a<b, b<c

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Creeper300

07 Nov 2010, 13:44

3

2

3,469

by: metallicafan

03 Feb 2012, 11:39

ER

A biker travels from point A to Point C in a straight line

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Poor Quality hide tags

Creeper300

07 Nov 2010, 13:53

2

2,843

by: KarishmaB

08 Nov 2010, 10:04

ER

a^2+b^2=6, a+b=? 1. b-a=2 2. a=-b

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Poor Quality hide tags

Creeper300

07 Nov 2010, 00:56

1

5

3,638

by: KarishmaB

07 Nov 2010, 07:14

What is the value of y ? (1) y^2 − 7y + 12 = 0 (2) y > 0

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

crazu4

02 Oct 2014, 17:50

4

5

7,008

by: bumpbot

04 Feb 2024, 08:21

ER

x equals to y% of what number? (1) x = 3y (2) 6y + 2x = 56x/14

555-605 (Medium) | Percent and Interest Problems

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

craky

27 Jan 2011, 02:38

5

5,184

by: Nightfury14

24 Jun 2016, 11:44

ER

If a, b, and c are positive integers, and a is a multiple of 3

705-805 (Hard) | Multiples and Factors

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

CrackverbalGMAT

26 May 2019, 01:17

7

4

3,209

by: bumpbot

24 Jul 2025, 08:28

ER

Ben combines x liters of milk that contains 10% water W, by weight....

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

CrackverbalGMAT

10 Apr 2020, 05:32

40

3

6,643

by: bumpbot

09 Jun 2025, 21:45

ER

If p and q are positive integers, is p/q also an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

CrackverbalGMAT

17 May 2019, 06:34

11

3

5,275

by: bumpbot

05 Jan 2024, 17:55

ER

‘x’ is a positive integer. Is (x-1)! + 1 divisible by x?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

CrackverbalGMAT

17 May 2019, 06:29

10

4

6,155

by: bumpbot

04 May 2022, 08:22

ER

A bowl is filled with consecutively numbered tiles from 1 to x. Joe

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

crackgmat750

13 Jul 2015, 00:48

51

14

8,971

by: bumpbot

15 Feb 2023, 01:14

ER

If there are 20 cards that have either a red number or a black number

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

cr7notmessi

27 Jun 2018, 07:50

5

3

2,733

by: bumpbot

30 May 2025, 12:34

ER

There are six consecutive positive integers in Set S. What

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

corvinis

27 Aug 2012, 15:30

72

9

10,707

by: Rutvik15

26 Jun 2024, 05:11

ER

If cd > 0, does (c-2)(d-2) = 4?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

corgilover

24 Dec 2018, 10:50

12

7

5,069

by: Bunuel

20 Jul 2022, 01:57

ER

What was the cost in dollars per mile of the jet fuel needed for a pla

505-555 (Easy) | Work and Rate Problems

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

coreyander

19 Jul 2020, 07:32

1

2

2,287

by: IanStewart

20 Jul 2020, 09:58