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

78,629

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,463

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

487,848

by: bb

29 Aug 2025, 13:27

ER

Is the positive integer P a multiple of 11

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

stonecold

08 Apr 2016, 00:21

3

7

4,487

by: bumpbot

21 Apr 2024, 23:27

ER

Is x + y odd? (1) 2y + x is even (2) 2x + y is even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

stonecold

21 Nov 2016, 02:22

6

5

4,180

by: bumpbot

24 Apr 2024, 23:12

ER

If A and B are positive integers, does A have more prime factors

705-805 (Hard) | Multiples and Factors

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

stonecold

22 Nov 2016, 08:24

18

7

3,099

by: bumpbot

21 Oct 2024, 15:31

ER

Is A*B even? (1) A + B = 7 (2) B is even

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

stonecold

07 Sep 2024, 09:54

15

3,557

by: bumpbot

11 Mar 2025, 18:47

ER

Is the integer z divisible by 6?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

stonecold

21 Aug 2016, 07:33

13

7

3,638

by: bumpbot

03 Jan 2026, 02:39

ER

During a 5 year period, the profits of Company Z changed by what

555-605 (Medium) | Percent and Interest Problems, Word Problems

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

stowaway

10 Jan 2021, 23:29

3

1,457

by: rocky620

11 Jan 2021, 05:41

ER

If X is a positive integer, is X a perfect square?

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

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

StringArgs

02 Jul 2022, 23:26

14

4

4,573

by: bumpbot

09 Dec 2025, 07:44

ER

At what angle do lines y = Kx + B and y = Bx + K intersect ?

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

study

29 Dec 2009, 21:28

14

8

9,580

by: bumpbot

23 Jan 2023, 00:49

ER

If x and y are positive integers and x> y, what is the value of xy^2 +

555-605 (Medium) | Algebra, Number Properties

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

study

01 Oct 2023, 12:52

13

3

7,872

by: Bunuel

11 Oct 2023, 04:23

ER

Is |x - 5| > 4 ?

555-605 (Medium) | Absolute Values, Inequalities

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

study

24 Nov 2009, 00:56

16

7,505

by: bumpbot

03 Dec 2023, 03:12

ER

Is X divisible by 15?

705-805 (Hard) | Multiples and Factors, Number Properties

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

study

13 Jun 2010, 09:00

8

4

4,764

by: bumpbot

19 Jun 2024, 04:32

ER

If a and b are positive integers, is 10^a + b divisible by 3

605-655 (Medium) | Number Properties, Remainders

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

study

12 Oct 2013, 09:15

73

4

15,257

by: bumpbot

23 Nov 2024, 07:32

ER

If x and y are two points on the number line what is the

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

study

24 Apr 2012, 05:47

103

13

22,228

by: bumpbot

16 Dec 2024, 07:06

ER

If x^2 = y + 5 , y = z - 2 and z = 2x , is x^3 + y^2 + z

805+ (Hard) | Algebra, Multiples and Factors

805+ (Hard) | Algebra, Multiples and Factors hide tags

study

13 Jun 2010, 09:11

146

15

36,329

by: bumpbot

23 Jan 2025, 12:32

ER

Is |x - y| > |x| - |y|? (1) y < x (2) xy < 0

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

1, 2, 3

study

20 Jul 2021, 00:43

1.5k

48

218,993

by: ManishaPrepMinds

14 Jul 2025, 00:02

ER

If in a six-digit integer n, f(k) represents the value of the

805+ (Hard) | Functions and Custom Characters, Multiples and Factors

805+ (Hard) | Functions and Custom Characters, Multiples and Factors hide tags

study

02 Dec 2009, 12:52

89

8

11,579

by: bumpbot

09 Sep 2025, 18:58

ER

What is the median of 15 integers?

555-605 (Medium) | Statistics and Sets Problems

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

stunn3r

25 Jun 2013, 05:30

4

12

7,379

by: bumpbot

24 Aug 2016, 00:56

ER

If a*b*c=60, where a, b, and c are integers greater than 1

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

stunn3r

25 Jun 2013, 02:03

5

4

5,008

by: bumpbot

13 Jan 2022, 06:35

ER

Is xy < 1? (1) x + y = 1 (2) x^2 + y^2 = 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

stunn3r

19 Nov 2018, 03:59

7

6

3,882

by: bumpbot

12 Sep 2023, 22:07

ER

One of the sides of a triangle tht inscribe in a circle is 6

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

stunn3r

25 Jun 2013, 02:08

14

8

8,938

by: bumpbot

24 Sep 2023, 21:54

ER

In the figure above, P and Q are centers of two identical circles. Is

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

stunn3r

25 Jun 2013, 05:15

49

19

10,789

by: bumpbot

11 Oct 2024, 22:45

ER

A department manager distributed a number of pens, pencils

705-805 (Hard) | Fractions and Ratios, Word Problems

705-805 (Hard) | Fractions and Ratios, Word Problems hide tags

subhabrata1986

15 Nov 2010, 00:54

543

18

55,197

by: bumpbot

06 Jan 2026, 00:33

ER

In the figure above, three segments are drawn from the oppos

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

subhajeet

18 Sep 2011, 00:08

44

13

9,027

by: bumpbot

15 Feb 2023, 00:12

ER

Is y an integer? (1) y^3 is an integer (2) 3y is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

subhajeet

10 Feb 2012, 05:21

40

6

18,807

by: bumpbot

29 Oct 2024, 00:57

Kunal takes ‘a’ days to complete a work while Sandeep takes ‘b’ less d

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

Subhajit007

10 May 2019, 02:07

13

6

4,423

by: bumpbot

01 Jul 2025, 13:09

hillary works for 4 days and leaves the job. In how many days can hill

505-555 (Easy) | Distance and Speed Problems

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

Subhajit007

26 May 2019, 06:31

5

2,368

by: bumpbot

09 Jan 2026, 05:11

x boys can complete a work in 15 days and y girls can complete the

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

Subhajit007

10 May 2019, 02:09

18

4

4,504

by: bumpbot

29 Jan 2026, 02:41

ER

Harry bought 3 items and got 20% discount off regular price

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

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

subhashghosh

12 Jul 2013, 01:40

33

16

13,993

by: bumpbot

25 Mar 2026, 22:46

If p and q are two consecutive positive integers and pq= 30x

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

subirh

12 Oct 2012, 01:10

43

9

6,192

by: bumpbot

08 Mar 2023, 23:49

ER

Is rst = 1?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sudhagar

07 Nov 2013, 02:08

15

6

19,805

by: Bunuel

07 Nov 2013, 02:10

ER

If m is an integer, is m odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

1, 2, 3

sudhagar

06 Nov 2005, 13:00

221

41

55,523

by: totaltestprepNick

23 Feb 2026, 13:46

ER

What is the units digit of Y?

Poor Quality

Poor Quality hide tags

sudhir18n

29 Jun 2011, 01:25

5

9

7,822

by: tann412

14 Oct 2018, 07:32

ER

Is r/s^2 a terminating decimal?

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

SudiptoGmat

23 Feb 2010, 14:23

74

5

27,429

by: bumpbot

21 Jul 2025, 02:03

ER

Is xy = -1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sugu86

27 May 2014, 00:54

4

7

4,618

by: bumpbot

08 Aug 2015, 10:37

ER

Minimum value of the function f(x) = |x – a| + |x – b| + |x – c|

805+ (Hard) | Absolute Values +3 tags

805+ (Hard) | Absolute Values, Algebra, Functions and Custom Characters, Min-Max Problems hide tags

sujoykrdatta

14 May 2021, 12:46

30

5

3,971

by: bumpbot

07 Jan 2025, 12:16

ER

What is the value of xyz?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

suk1234

26 Dec 2013, 10:45

28

19

11,307

by: Ankit__7182

24 Jun 2024, 06:21

ER

What is the average of a, b and c?

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

suk1234

31 Jul 2014, 14:50

17

6

36,308

by: Bunuel

03 Oct 2025, 07:42

ER

Following are the vertexes of a triangle, (0,0), (0,a) and (a,b). What

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Poor Quality hide tags

sukeshap

14 Jan 2017, 20:15

1

1,160

by: chetan2u

12 Jan 2017, 20:26

ER

Is a + b = a^2 + b^2? (1) a and b are natural numbers. (2) a > b

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

SukhAgam

26 Feb 2025, 21:21

2

3

1,203

by: Kinshook

28 Feb 2025, 01:22

ER

Is a^2 greater than b^2?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

suminha

17 Aug 2020, 22:02

3

2,556

by: IanStewart

18 Aug 2020, 12:26

2x+y<10?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

suminha

17 Aug 2020, 22:10

5

2

1,430

by: nehasomani33

19 Aug 2020, 10:15

ER

Is 5x + 4y = 9 ? where x and y are integers. (1) xy > 0 (2) x > 0 a

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sumit99kr

22 Jun 2023, 07:07

1

659

by: GMATinsight

22 Jun 2023, 07:04

A man mixes two types of rice (X and Y) and sells the mixture at the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

sumitkrocks

17 Apr 2021, 19:57

1

1,893

by: globaldesi

18 Apr 2021, 06:27

If a = b + 3, what is the value of b*a? (1) b^2 + 3b = 4 (2) a = 4

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

sumitrmane

17 Nov 2023, 13:40

3

2

1,631

by: RajibDhara

03 Apr 2024, 04:43

ER

What is the value of a+b ?

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Poor Quality hide tags

summer101

02 Jun 2013, 05:07

2

2,043

by: Bunuel

02 Jun 2013, 10:45

ER

Is square root of a positive integer x an integer?

705-805 (Hard) | Multiples and Factors, Number Properties

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

summer101

03 Jun 2013, 07:14

37

2

9,767

by: Bunuel

05 Jun 2013, 03:07

ER

The figure above represents a rectangular tile. The 8 hexago

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

summer101

11 Jun 2013, 06:19

7

10

5,314

by: BillyZ

15 Jan 2017, 01:31

ER

Store R and S each discounted their selling prices of a cert

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

summer101

11 Jun 2013, 02:04

3

3,539

by: bumpbot

12 Apr 2022, 23:16

ER

Is x^2 < x - |y|?

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

summer101

04 Jun 2013, 15:35

25

19

5,468

by: bumpbot

18 Oct 2022, 03:58

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

7

4

6,949

by: bumpbot

14 Nov 2022, 04:43