GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

176

15

78,687

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

188,503

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

487,912

by: bb

29 Aug 2025, 13:27

ER

If x ≠ -y is (x - y)/(x + y) > 1? (1) x > 0 (2) y < 0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

jusjmkol740

03 Mar 2010, 07:22

257

26

58,417

by: bumpbot

14 Dec 2025, 03:38

ER

Is x y = y x, for all real values of x and y?

555-605 (Medium) | Functions and Custom Characters

555-605 (Medium) | Functions and Custom Characters hide tags

jusjmkol740

07 Oct 2016, 07:35

8

12

7,745

by: bumpbot

31 Dec 2021, 11:02

ER

A set consists of 10 positive integers. What is the standard deviation

555-605 (Medium) | Statistics and Sets Problems

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

junii

17 Dec 2020, 05:26

16

4

6,702

by: bumpbot

25 Oct 2023, 08:54

ER

Is d negative? (1) e + d = -12 (2) e – d < -12

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

jumli

10 Apr 2014, 07:10

64

14

17,825

by: bumpbot

14 Oct 2025, 09:02

ER

What is the sum of the digits of the positive integer n

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

judokan

05 Sep 2014, 22:01

32

5

24,060

by: Bunuel

05 Sep 2014, 22:02

ER

Is a*b*c divisible by 32?

655-705 (Hard) | Multiples and Factors

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

Juaz

24 May 2007, 02:16

21

8

9,272

by: bumpbot

14 Jan 2025, 13:34

ER

Is z an odd integer? (1) z/3 is odd. (2) 3z is odd.

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Juaz

01 May 2007, 00:09

28

8

13,580

by: Bunuel

04 Sep 2024, 09:41

ER

Is the number n an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

jsphcal

27 Dec 2012, 23:07

17

4

8,083

by: bumpbot

24 Apr 2025, 20:49

ER

Is k the square of an integer?

555-605 (Medium) | Algebra, Number Properties

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

jsphcal

05 Sep 2017, 01:08

63

8

13,098

by: bumpbot

25 Feb 2025, 09:44

In a certain two-digit integer, the ratio of the units digit

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

jsphcal

07 Jan 2013, 22:46

19

10

11,671

by: bumpbot

16 Oct 2024, 14:17

ER

Does ab= a^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

jsphcal

18 Dec 2012, 22:51

18

8

8,330

by: bumpbot

15 Oct 2024, 21:28

ER

How many positive prime numbers are less than the integer n?

505-555 (Easy) | Inequalities, Number Properties

505-555 (Easy) | Inequalities, Number Properties hide tags

jsphcal

27 Dec 2012, 00:50

16

4

11,069

by: Kimberly77

24 Oct 2023, 11:22

ER

If xy = -18, is x less than y? (1) x < 0 (2) y < 10

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

jsphcal

07 Apr 2013, 01:43

14

7

16,992

by: bumpbot

25 Jun 2023, 01:31

ER

What is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

jsphcal

19 Dec 2012, 08:12

43

5

9,254

by: bumpbot

10 May 2023, 11:22

ER

What is the value of the positive integer m?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

jsphcal

28 Nov 2012, 22:22

11

3

5,578

by: bumpbot

18 Apr 2023, 02:16

ER

Is x between 0 and 1 ? (1) x^2 is less than x (2) x^3 is positive

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

jscott319

04 Nov 2010, 19:49

114

15

38,545

by: KalleAbhi

19 Jul 2025, 05:39

ER

E, F, G, and H are the vertices of a polygon. Is polygon EFGH a square

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

jscott319

28 Nov 2010, 13:18

59

16

23,432

by: bumpbot

24 Sep 2023, 19:09

What percent of x is 3/4?

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

jscott319

11 Dec 2010, 20:03

2

4,962

by: jscott319

11 Dec 2010, 21:18

ER

If y is a positive integer, what is the units digit of y?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

JS1290

30 Sep 2017, 20:03

15

8

3,650

by: chetan2u

19 Jun 2019, 20:10

ER

Is the integer P odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

jrzayev001

17 Oct 2013, 02:31

27

8

14,332

by: bumpbot

04 Jun 2024, 11:01

ER

Is x > y ? (1) x + y > 0 (2) x^2 - y^2 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

jrawls

05 Nov 2020, 06:34

10

7

4,363

by: bumpbot

06 Oct 2020, 20:27

ER

On the number line, the distance between point A and point C is 5 and

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

jpr200012

30 Jul 2010, 13:20

76

7

30,965

by: bumpbot

07 Dec 2025, 21:53

ER

In triangle ABC above, line segment CD has a length of 2. What is the

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

jppresa

30 Apr 2021, 02:54

1

2,753

by: TestPrepUnlimited

30 Apr 2021, 08:16

ER

In a certain building, 1/5 of the offices have both a window

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

Jp27

25 Oct 2012, 00:36

113

12

21,601

by: Bunuel

07 Sep 2025, 11:04

ER

What results if the number x is rounded to the nearest hundred?

705-805 (Hard) | Arithmetic, Fractions and Ratios

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

Jp27

24 Apr 2024, 00:38

32

9

8,060

by: bumpbot

24 Aug 2025, 06:07

ER

x, y, and z are consecutive integers, and x < y < z. What is the avera

Sub 505 (Easy) | Number Properties, Statistics and Sets Problems

Sub 505 (Easy) | Number Properties, Statistics and Sets Problems hide tags

joyseychow

27 Jul 2015, 14:54

13

14

21,593

by: Angievirvi

10 Oct 2020, 11:50

ER

Does line P (not pictured) intersect line segment QR in the

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

joylive

07 Oct 2013, 11:04

41

13

16,813

by: aronbhati

26 Jan 2025, 06:05

ER

If x is a negative integer greater than -10, is z greater than average

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

joylive

24 Nov 2012, 09:36

9

3

3,898

by: SatvikVedala

31 Aug 2024, 20:58

ER

If the vertices of a quadrilateral PQRS lie on the circumference of

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

joylive

11 Nov 2017, 05:13

66

9

14,903

by: Binod826

30 Aug 2024, 00:25

ER

If ABD is a triangle, is triangle ABC a right triangle

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

joylive

07 Dec 2012, 09:24

71

25

17,747

by: bumpbot

31 Mar 2024, 21:45

ER

In the figure above, segments RS and TU represent two

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

joylive

16 Oct 2012, 05:15

19

8,710

by: bumpbot

22 Feb 2023, 01:24

ER

What is the area of quadrilateral ABCD?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

joylive

24 Nov 2012, 09:14

14

6

6,643

by: CEdward

22 Mar 2021, 11:40

ER

Is the prime number p equal to 3

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

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

joylive

11 Nov 2012, 08:56

3

4,196

by: bumpbot

28 Sep 2017, 08:05

ER

a and b are integers such that a*b # 0. Is |a|/|b| = a/b?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

joylive

24 Nov 2012, 08:56

5

3

2,937

by: Bunuel

14 Aug 2017, 01:02

ER

What is the remainder when the positive integer n is divided by the po

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

JoyLibs

20 Oct 2019, 01:30

202

7

45,063

by: agrasan

16 Jul 2025, 22:57

ER

If n is an integer, then n is divisible by how many positive integers?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

joshuawang

01 Oct 2014, 19:05

12

11

4,843

by: bumpbot

23 Jan 2023, 06:46

ER

In the xy-plane, region A consists of all the points (x,y)

655-705 (Hard) | Coordinate Plane, Inequalities

655-705 (Hard) | Coordinate Plane, Inequalities hide tags

josemnz83

10 Dec 2015, 02:26

36

10

7,940

by: ScottTargetTestPrep

27 Jan 2021, 06:06

ER

George scored 85 on an exam. Did George do better than 90

555-605 (Medium) | Statistics and Sets Problems

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

josemnz83

07 Jul 2013, 08:57

5

8

4,895

by: Bunuel

17 Jul 2013, 05:47

ER

If a and b are positive integers, is a!/b! an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

josemarioamaya

20 Sep 2013, 14:01

27

8

9,456

by: bumpbot

21 Dec 2022, 10:24

ER

Is ad > bc ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

josemarioamaya

20 Sep 2013, 00:39

16

10

5,211

by: bumpbot

29 Jan 2020, 10:30

ER

Is the point (x,y) in the fourth quadrant?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

1, 2

Jones105

23 Nov 2017, 23:59

8

21

8,027

by: Salsanousi

30 Sep 2018, 14:25

ER

If wx = y, then what is the value of xy?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

jonblazon

31 Dec 2010, 04:51

138

11

36,093

by: bumpbot

05 Dec 2025, 12:55

ER

In a Pegasus company, 95% of the employees own Pegasus stock. Let N be

655-705 (Hard) | Multiples and Factors

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

JohnGalt1

21 Mar 2021, 11:57

12

3

3,277

by: bumpbot

18 Aug 2024, 06:09

What is the area of rectangular region ABCD ?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

johncena001

09 Jun 2019, 21:44

1

3

3,683

by: globaldesi

09 Jun 2019, 20:58

ER

In order to make the national tennis team, Matt

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

jogeshanand

23 Jun 2014, 22:02

88

16

13,282

by: bumpbot

04 Nov 2024, 07:21

ER

At a certain bakery, each roll costs r cents and each doughnut costs

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

1, 2

joemama142000

18 Dec 2005, 18:08

86

21

21,422

by: bumpbot

07 Apr 2026, 03:06

ER

If r and s are positive integers, can the fraction r/s be expressed as

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

joemama142000

19 Sep 2014, 07:26

8

10

6,043

by: Bunuel

19 Sep 2014, 07:27

ER

Is x > y? (1) x and y are both positive integers. (2) x/y > 1

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

joejoe4868

03 Feb 2019, 02:00

1

4

3,132

by: TestPrepUnlimited

12 Nov 2020, 09:46

ER

A certain local newspaper has 80 employees. Of the employees 3/5 are

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Joc456

27 Sep 2016, 14:02

8

5

3,493

by: bumpbot

30 Aug 2025, 18:56

ER

Each of the dogs enrolled in an obidience course either passed or fail

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

joaquincollado

24 May 2024, 10:23

16

4

5,149

by: bumpbot

10 Jun 2025, 18:54