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

78,606

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

188,448

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

487,810

by: bb

29 Aug 2025, 13:27

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

What is the units digit of Y?

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Poor Quality hide tags

sudhir18n

29 Jun 2011, 01:25

5

9

7,820

by: tann412

14 Oct 2018, 07:32

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

55,520

by: totaltestprepNick

23 Feb 2026, 13:46

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

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

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

13,992

by: bumpbot

25 Mar 2026, 22:46

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

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

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

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

18,805

by: bumpbot

29 Oct 2024, 00:57

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

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, 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

10,788

by: bumpbot

11 Oct 2024, 22:45

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

8,936

by: bumpbot

24 Sep 2023, 21:54

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

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

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 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

11,578

by: bumpbot

09 Sep 2025, 18:58

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

218,981

by: ManishaPrepMinds

14 Jul 2025, 00:02

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

36,327

by: bumpbot

23 Jan 2025, 12:32

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 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

15,255

by: bumpbot

23 Nov 2024, 07:32

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

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

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

7,870

by: Bunuel

11 Oct 2023, 04:23

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 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

4,572

by: bumpbot

09 Dec 2025, 07:44

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

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

3,637

by: bumpbot

03 Jan 2026, 02:39

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

3,556

by: bumpbot

11 Mar 2025, 18:47

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 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

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

4,486

by: bumpbot

21 Apr 2024, 23:27

ER

Consider an integer x=251n9 where n represents the tens digit of x, wh

555-605 (Medium) | Multiples and Factors

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

stonecold

04 Nov 2016, 09:35

12

3

4,744

by: bumpbot

13 Apr 2024, 21:42

Is integer x odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

stonecold

16 Oct 2016, 04:41

3

4

2,267

by: bumpbot

26 Jan 2024, 00:19

ER

If x are y are positive integers, what is the value of x+y

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

stonecold

21 Nov 2016, 21:59

13

7

4,590

by: bumpbot

17 Oct 2023, 10:59

If N is a single digit integer and M>0, what is the value of M?

555-605 (Medium) | Fractions and Ratios

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

stonecold

18 Nov 2016, 23:36

5

2

2,219

by: bumpbot

06 Aug 2023, 09:05

ER

If m and n are positive integers such that m > n, what is the Re.

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

stonecold

17 Oct 2016, 13:14

9

5

5,340

by: bumpbot

07 Nov 2022, 05:57

ER

Is a positive integer x square of an integer?

705-805 (Hard) | Multiples and Factors

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

stonecold

22 Nov 2016, 22:58

13

3

2,970

by: nik256

28 Sep 2022, 18:29

ER

Is x < 0 ? (1) |x - 5| = 7x + 2 (2) |x + 5| = |4x + 5|

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stonecold

07 Feb 2019, 08:12

44

13

13,339

by: arjunnath

09 Sep 2021, 10:35

ER

If x,y,z are different prime numbers. What is the value of y?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

stonecold

03 Nov 2016, 09:28

2

4

2,673

by: TestPrepUnlimited

09 Sep 2020, 16:30

ER

Is the sum of integers a and b divisible by 6?

605-655 (Medium) | Number Properties, Remainders

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

stonecold

26 Aug 2016, 14:08

7

5

3,148

by: NeverEverGiveUp11

27 Mar 2020, 21:48

ER

If P and Q are Positive Integers, is P/Q terminating?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

stonecold

06 Nov 2016, 09:22

4

3

4,232

by: Salsanousi

04 Oct 2018, 08:19

ER

If a, b and c are integers and a < b < c. Are a, b, c consecutive

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

stonecold

17 Aug 2016, 07:26

55

5

14,230

by: Bunuel

19 Nov 2017, 23:33

If K is a positive integer; What is the remainder when

555-605 (Medium) | Number Properties, Remainders

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

stonecold

27 Aug 2016, 16:14

3

4

3,255

by: kkrrsshh

10 Nov 2016, 22:52

Are two positive integers m and n reciprocals?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

stonecold

07 Nov 2016, 12:14

2

1

1,718

by: acegmat123

07 Nov 2016, 16:58

A and B are two integers. Is A-7B Even?

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

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

stonecold

03 Aug 2016, 04:57

1

3

2,229

by: stonecold

24 Aug 2016, 02:16

ER

Is N divisible by 24?

505-555 (Easy) | Multiples and Factors

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

stonecold

20 Jul 2016, 09:36

2

2,131

by: abhimahna

20 Jul 2016, 11:10

ER

Find integer W. (1) W is a prime solution of (|W|)!=|W| (2)

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

stolyar

03 Jul 2013, 06:47

32

13

7,672

by: bumpbot

23 Jul 2023, 09:06

ER

The three integers X, Y, and Z. Is their product XYZ = zero

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stolyar

26 Jun 2003, 04:07

1

15

4,991

by: bumpbot

24 Dec 2021, 03:24