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

179

15

79,698

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

858

24

188,975

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

488,673

by: bb

29 Aug 2025, 13:27

ER

If (x - 1)y = 0, what is the value of x ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Sep 2017, 00:32

9

6

7,344

by: bumpbot

19 Aug 2021, 07:15

ER

If x=y, is it true that x rounded to the nearest tenths is equal to th

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

19 May 2021, 06:30

9

2

1,951

by: Fdambro294

24 Aug 2021, 16:13

ER

Did at least 15 percent of the children in Springfield suffer adverse

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

12 Mar 2021, 01:15

9

4

3,374

by: BrentGMATPrepNow

11 Sep 2021, 08:35

ER

What is the value of x^2 – y^2?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

porvakanti

18 Dec 2015, 01:01

9

12

9,834

by: bumpbot

12 Sep 2021, 16:54

ER

Is y − x < 60 ? (1) When x and y are rounded to the nearest unit, the

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

10 Sep 2020, 00:15

9

5

2,316

by: bumpbot

14 Sep 2021, 21:34

ER

In the xy-plane, if line l has negative slope and passes through the

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

25 May 2018, 01:13

9

4

3,480

by: bumpbot

05 Oct 2021, 08:26

ER

If x + y = 36, what is the value of xy?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

24 Aug 2016, 05:15

9

7

31,284

by: bumpbot

16 Oct 2021, 20:10

ER

If x and y are positive integers, is x odd? (1) x*y is a prime number

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

14 May 2018, 01:43

9

7

3,938

by: Bunuel

18 Oct 2021, 11:18

ER

If p and q are positive integers, is every factor of p a fac

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

neha24

21 Apr 2013, 06:07

9

3

5,715

by: Bunuel

21 Oct 2021, 01:52

ER

Is 1/8 < n < 1/6 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

FN

25 Oct 2014, 06:00

9

4,964

by: CrackverbalGMAT

27 Oct 2021, 22:24

ER

Is a two digit positive integer mn, where x m is the tens digit and n

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

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

Bunuel

03 Dec 2018, 21:19

9

10

4,429

by: Bunuel

08 Nov 2021, 09:46

ER

If n is not a prime number, then is the product of all the positive fa

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

SohGMAT2020

18 Oct 2020, 14:24

9

5

2,427

by: bumpbot

24 Nov 2021, 09:54

ER

Is x greater than x^3 ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

lumone

20 Apr 2014, 12:26

9

10

5,945

by: bumpbot

03 Dec 2021, 11:19

x and y are positive integers. Is x+y divisible by 24 ? 1) xy+1 is di

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

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

nick1816

15 Nov 2019, 00:42

9

3

2,293

by: hadimadi

25 Dec 2021, 06:15

ER

Let n be a positive integer. Is n^2 + 1 divisible by n + 1?

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

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

Bunuel

02 Dec 2019, 00:40

9

2

2,363

by: bumpbot

04 Jan 2022, 09:46

ER

What does p equal?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

galiya

25 Jun 2012, 11:57

9

6

7,727

by: bumpbot

10 Jan 2022, 02:21

ER

If two triangles are similar, what is the perimeter of the

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

agnok

09 Sep 2010, 07:45

9

8

6,611

by: bumpbot

12 Jan 2022, 11:45

ER

What is y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

flower07

13 Dec 2013, 16:31

9

6

4,347

by: bumpbot

20 Jan 2022, 06:13

ER

What was the standard deviation of Company R's earnings per month for

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

10 Feb 2020, 05:18

9

3

4,701

by: bumpbot

22 Jan 2022, 10:06

ER

If a < -1, is b between 0 and 1?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

23 Nov 2017, 06:33

9

5

3,712

by: bumpbot

24 Jan 2022, 10:57

ER

If a and b are positive integers, is √(a+b) an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

16 Feb 2015, 06:56

9

7

4,467

by: bumpbot

03 Feb 2022, 03:29

ER

If x is a positive integer, is x^3-3x^2+2x divisible by 4?

555-605 (Medium) | Multiples and Factors

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

kashishh

06 Feb 2012, 13:30

9

14

10,416

by: bumpbot

12 Feb 2022, 15:27

ER

Is x an integer ?

605-655 (Medium) | Algebra, Number Properties

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

Carcass

23 Jan 2015, 06:48

9

4

3,957

by: bumpbot

17 Feb 2022, 04:23

ER

There are n people standing on line L. What is the value of n?

Sub 505 (Easy) | Combinations

Sub 505 (Easy) | Combinations hide tags

Bunuel

20 Jan 2015, 07:16

9

3

11,819

by: bumpbot

23 Feb 2022, 03:26

ER

If ab = 3, is a > b ? (1) b ≤ 1.5 (2) a ≥ 2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

12 Aug 2020, 01:57

9

6

2,732

by: bumpbot

24 Feb 2022, 08:01

ER

Each year, Company Xs local tax burden is computed by charging a set

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

09 Mar 2022, 04:00

9

1

2,200

by: Nidzo

09 Mar 2022, 04:20

ER

What is the remainder when positive integer n is divided by 3?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

27 Apr 2020, 03:22

9

5

3,029

by: bumpbot

14 Mar 2022, 08:07

ER

Is p positive? (1) The square of p is positive (2) |p| - p is posit

Sub 505 (Easy) | Absolute Values, Inequalities

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

Carolina0303

14 Nov 2020, 13:56

9

5

3,147

by: bumpbot

20 Mar 2022, 18:56

ER

If a^2 = b^2 = 25, what is the value of a + b? (1) a - b = 0 (2) ab =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Mar 2021, 01:30

9

5

4,077

by: bumpbot

24 Mar 2022, 20:56

ER

Is y a positive number? (1) 2x + y > 27 (2) x – 3y < 24

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

13 Feb 2021, 09:13

9

6

4,877

by: bumpbot

27 Mar 2022, 00:20

ER

Is xyz > 0 ? (1) (x - 3)(y - 3) > 0 (2) z > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

SelimAIUB

27 Mar 2022, 08:11

9

3

1,702

by: Kinshook

27 Mar 2022, 10:44

ER

For a positive integer n, is n divisible by 6? (1) n = m3 - m, for any

555-605 (Medium) | Multiples and Factors

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

siddharthkapoor

13 Jul 2020, 01:05

9

7

4,034

by: bumpbot

31 Mar 2022, 10:25

ER

How many red balls are in the barrel?

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

29 Mar 2017, 04:47

9

3

3,359

by: bumpbot

19 Apr 2022, 07:42

ER

If x ≠ y, is x + y = xy?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Nov 2017, 09:39

9

5

7,471

by: bumpbot

23 Apr 2022, 05:56

A solid rectangular block is made up of iron. If the iron weighs 25 gr

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

ktzsikka

05 Feb 2022, 05:56

9

2

2,489

by: vaibhav1221

25 Apr 2022, 00:40

ER

What is the value of 2^a*4^b?

Sub 505 (Easy) | Exponents

Sub 505 (Easy) | Exponents hide tags

Bunuel

04 Nov 2014, 09:47

9

8

7,093

by: bumpbot

16 May 2022, 23:55

ER

On a graph the four corners of a certain quadrilateral

655-705 (Hard) | Coordinate Plane, Statistics and Sets Problems

655-705 (Hard) | Coordinate Plane, Statistics and Sets Problems hide tags

trex16864

04 Jan 2013, 03:06

9

8

5,896

by: bumpbot

17 May 2022, 00:40

ER

If 4t/3x = 2/3y + 2/5y and xy is not equal to 0, is t equal to 1?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

04 Apr 2016, 07:13

9

7

6,294

by: bumpbot

22 May 2022, 15:26

ER

Set X only contains all possible solutions of equation (I) above

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

nishith17

28 Feb 2016, 00:07

9

4

2,422

by: bumpbot

31 May 2022, 05:22

ER

A supermarket sells both a leading brand of laundry powder a

Poor Quality

Poor Quality hide tags

andrehaui

28 May 2007, 06:27

9

12

5,403

by: KarishmaB

12 Jun 2022, 05:34

ER

Is triangle ABC isosceles? (1) Angle ABC is greater than 90 degrees.

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

amanvermagmat

07 Jun 2018, 05:24

9

8

3,002

by: bumpbot

29 Jun 2022, 16:01

ER

If |x - 3| - |x - 4| = |x - 6|, what is the value of x?

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

aarish2102

12 Jul 2022, 09:07

9

5

2,361

by: AndrewN

12 Jul 2022, 09:11

ER

If x is not equal to 1, is x^2/(x-1) greater than x?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

banksy

18 Feb 2011, 11:58

9

4

4,307

by: bumpbot

01 Aug 2022, 08:27

ER

If x and y are nonzero integers, is 18 a factor of xy^2?

555-605 (Medium) | Multiples and Factors

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

MHIKER

13 Jan 2012, 09:49

9

10

8,568

by: bumpbot

06 Aug 2022, 10:44

ER

Is p<3?

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

ChandlerBong

11 Aug 2022, 07:27

9

7

1,897

by: KarishmaB

12 Aug 2022, 04:50

ER

If a < b and c < b, is abc < a ? (1) ab < 0 (2) ac > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

16 Mar 2020, 03:04

9

6

6,291

by: Fdambro294

15 Aug 2022, 16:12

ER

Is the median of class A and class B combined greater than the mean of

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

17 Jan 2020, 02:39

9

2

4,886

by: bumpbot

21 Aug 2022, 16:16

ER

x and y are two positive integers. Which number among x and y has more

705-805 (Hard) | Multiples and Factors

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

AkhilAggarwal

26 May 2021, 16:48

9

2

2,848

by: SaquibHGMATWhiz

22 Aug 2022, 22:45

ER

Is x > 0 ? (1) xy + y = y (2) xy + x = x

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Nevernevergiveup

15 Dec 2015, 08:00

9

7

3,862

by: bumpbot

12 Sep 2022, 09:15

Is y greater than x? (1) |y|<1 and |x| <2 (2) y>0

Sub 505 (Easy) | Absolute Values, Inequalities

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

aiming4mba

22 Jul 2010, 13:07

9

6

5,998

by: bumpbot

16 Sep 2022, 10:43