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

79,031

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

188,701

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

488,229

by: bb

29 Aug 2025, 13:27

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

5,448

by: bumpbot

30 Jun 2021, 13:58

ER

If m and n are positive integers, is mn <= 6?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

25 Mar 2020, 01:31

7

8

3,170

by: GmatKnightTutor

07 Jul 2021, 18:00

ER

If 50,000 < x < 60,000 and x is an integer, what is x?

555-605 (Medium) | Fractions and Ratios, Multiples and Factors

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

Bunuel

28 Jan 2015, 08:01

17

8

6,421

by: vidyasagar151

07 Jul 2021, 22:56

ER

The surface area of a rectangular field was changed so that the length

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Radhika11

27 May 2015, 14:12

5

8

6,640

by: bumpbot

08 Jul 2021, 04:08

If n is a non-zero integer, is (n^2+n+1)/n an integer?

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

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

freedom128

02 Sep 2019, 23:55

14

8

3,668

by: bumpbot

10 Jul 2021, 11:40

ER

What is the value of m + n? (1) jm + kn + nj + km = 36 (2) j + k = 12

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

29 Sep 2015, 05:24

5

8

11,814

by: bumpbot

18 Jul 2021, 22:31

ER

What is the degree measure of angle a in the figure above?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Berbatov

12 Feb 2019, 06:01

40

8

23,134

by: Shrihari12

27 Jul 2021, 07:03

ER

1/3 of golfers also play tennis, 3/5 of tennis players also surf. 4/7

805+ (Hard) | Fractions and Ratios +2 tags

805+ (Hard) | Fractions and Ratios, Overlapping Sets, Probability hide tags

NikkiL

01 Jan 2021, 00:29

37

8

7,390

by: IanStewart

05 Aug 2021, 12:44

ER

k is a positive integer. Is k prime?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

fireinbelly

30 Apr 2013, 03:57

17

8

5,502

by: bumpbot

10 Aug 2021, 10:37

ER

If x is greater than 105 percent of w, is x > 25?

605-655 (Medium) | Inequalities, Percent and Interest Problems

605-655 (Medium) | Inequalities, Percent and Interest Problems hide tags

Bunuel

29 Nov 2017, 00:33

8

2,900

by: bumpbot

12 Aug 2021, 00:41

ER

If x and y are positive integers, is x2 + x + y + 1 an even number?

805+ (Hard) | Multiples and Factors, Number Properties

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

samusa

19 Mar 2015, 22:49

25

8

4,585

by: chetan2u

13 Sep 2021, 10:05

ER

A company produces and sells two different products. Product A sells f

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

thinkvision

29 Aug 2020, 06:16

14

8

7,810

by: IanStewart

24 Sep 2021, 06:24

ER

If |6 – x| = 7, what is the value of x?

Sub 505 (Easy) | Absolute Values, Inequalities

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

Bunuel

06 Nov 2016, 09:08

11

8

5,735

by: pratiksha1998

09 Oct 2021, 19:36

ER

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

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

14 May 2018, 01:46

5

8

4,945

by: Bunuel

11 Oct 2021, 09:14

ER

If a^5*b^6*c^7 > 0, is a*b^3*c^5 <0 ? (1) b < 0 (2) c > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

03 Sep 2020, 02:14

5

8

3,036

by: bumpbot

21 Oct 2021, 09:17

ER

In the game of Funball, each batter can either hit a home run, hit a

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

08 Sep 2017, 03:18

31

8

8,831

by: bumpbot

23 Oct 2021, 02:05

ER

Is x > 2 + 2y ? (1) x^2 - 3xy + 2y^2 = 0 (2) y < -2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

25 May 2020, 11:23

9

8

4,062

by: Bunuel

03 Nov 2021, 06:44

ER

What is the value of a positive integer x? (1) x is three times the

805+ (Hard) | Algebra, Number Properties

805+ (Hard) | Algebra, Number Properties hide tags

Bunuel

10 Dec 2018, 02:32

28

8

4,971

by: Bunuel

09 Nov 2021, 04:29

ER

If x and y are positive integers, is x/y a terminating decimal?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

30 Jan 2018, 07:19

33

8

8,513

by: Bunuel

09 Nov 2021, 08:55

ER

If a, b, x, and y are all positive, is a/b > x/y ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Apr 2017, 03:34

18

8

4,005

by: GMATCoachBen

13 Nov 2021, 20:33

ER

What is the median of the list above?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

20 Aug 2018, 04:30

3

8

5,324

by: Bunuel

16 Nov 2021, 03:25

ER

A rectangular field of dimension 100 m x 80 m is to be covered by

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

EgmatQuantExpert

10 Jun 2018, 02:33

17

8

5,110

by: bumpbot

24 Nov 2021, 07:04

ER

Internal angle bisectors of triangle ABC with right angle at B meet at

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Nov 2021, 09:30

12

8

2,833

by: KarishmaB

05 Dec 2021, 21:27

ER

Was Lisa's salary at least twice as much as Julie's annual

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

TheBigCheese

28 Jan 2012, 06:11

13

8

12,023

by: bumpbot

18 Dec 2021, 03:20

ER

What is the maximum length of a rod, with marginal thickness, that can

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Sajjad1994

14 Oct 2018, 11:06

14

8

6,936

by: tangokilo23

20 Dec 2021, 00:39

ER

If A ,B , and C are points on the plane, is AB < 10 ?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

dungtd

04 Aug 2010, 20:35

3

8

4,335

by: bumpbot

22 Dec 2021, 17:19

ER

An arithmetic sequence is a sequence in which each term after the firs

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

22 May 2020, 01:26

13

8

3,040

by: bumpbot

22 Dec 2021, 23:00

ER

In the right triangle above, a < b. What is a?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

06 Jun 2017, 10:14

7

8

3,862

by: bumpbot

30 Dec 2021, 10:38

16 numbers (not necessarily distinct) are filled in the 4x4 square gri

805+ (Hard) | Combinations, Number Properties

805+ (Hard) | Combinations, Number Properties hide tags

nick1816

06 Apr 2020, 19:49

25

8

7,312

by: hadimadi

02 Jan 2022, 06:42

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

6,599

by: bumpbot

12 Jan 2022, 11:45

ER

Is 0 < (x−y)/(x−2y) < 1?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

13 Feb 2015, 08:45

7

8

5,762

by: Fdambro294

19 Jan 2022, 02:17

If N is a 3-digit integer, what is the value of N?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Amrita2405

12 Apr 2019, 23:37

8

3,393

by: bumpbot

21 Jan 2022, 07:02

ER

Triangle ABC is isosceles. What is the measure of angle BAC?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

07 Jan 2015, 07:36

14

8

17,074

by: bumpbot

25 Jan 2022, 09:16

ER

If x 1, what is the value of (|x| - 1)/(x - 1) ?

555-605 (Medium) | Absolute Values +2 tags

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

Bunuel

14 May 2018, 00:58

14

8

6,620

by: natheodore

03 Feb 2022, 07:08

ER

What is the remainder when the positive integer x is divided by 2?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

GMATBusters

07 Nov 2018, 09:53

6

8

5,299

by: kungfury42

16 Feb 2022, 06:42

ER

In quadrilateral LMNP, MN is parallel to PL, what is the measure of an

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

05 Nov 2019, 06:06

8

4,396

by: Sohinik

18 Feb 2022, 01:31

ER

M is a positive integer, is M odd?

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

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

Bunuel

24 Jun 2016, 03:21

11

8

3,764

by: bumpbot

18 Feb 2022, 22:50

If x is an integer, What is the value of |x+5|+ |x-3|?

705-805 (Hard) | Absolute Values, Inequalities

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

Kinshook

10 Jul 2019, 22:53

39

8

4,669

by: bumpbot

08 Mar 2022, 05:37

ER

B is a point equidistant from points A and C. How far is B from either

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

24 Mar 2020, 02:24

14

8

5,880

by: bumpbot

11 Mar 2022, 04:09

ER

The numbers a, b, and c are all non-zero integers. Is a > 0?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

02 Mar 2015, 08:15

13

8

4,894

by: bumpbot

21 Mar 2022, 03:52

ER

Is the product abcd divisible by 10?

655-705 (Hard) | Multiples and Factors

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

aadikamagic

03 Oct 2014, 11:32

14

8

6,911

by: bumpbot

05 Apr 2022, 05:00

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

7,016

by: bumpbot

08 Apr 2022, 10:45

ER

x is a positive integer and (x − 1) is prime. Is x a prime number?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Nevernevergiveup

26 Dec 2015, 04:13

6

8

5,839

by: bumpbot

19 Apr 2022, 07:22

ER

Is p > q ? (1) p + r > q + s and r > s (2) p + s < q + r and s > r

Poor Quality

Poor Quality hide tags

Bunuel

11 Nov 2019, 04:08

11

8

8,037

by: aditijain1507

02 May 2022, 10:20

A list of positive numbers 'L' has all integer values. What is the

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

amanvermagmat

15 Jan 2019, 22:04

5

8

2,540

by: OfCourse

07 May 2022, 01:48

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

7,086

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

5,886

by: bumpbot

17 May 2022, 00:40

ER

If point P (shown above) makes one complete revolution around the tria

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

20 May 2022, 01:30

2

8

2,191

by: zhanbo

01 Jun 2022, 05:39

ER

If x, y and k are integers, is xy divisible by 3? (1) y =

805+ (Hard) | Exponents, Multiples and Factors

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

shrive555

24 Oct 2010, 12:54

30

8

10,588

by: bumpbot

23 Jun 2022, 17:11

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

2,992

by: bumpbot

29 Jun 2022, 16:01