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

79,088

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

188,733

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

488,298

by: bb

29 Aug 2025, 13:27

ER

What is the greatest common factor of the positive integers j and k?

555-605 (Medium) | Multiples and Factors

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

Bunuel

25 Jun 2016, 02:53

22

5

10,093

by: bumpbot

30 Dec 2023, 21:04

ER

Each type A machine fills 400 cans per minute, each Type B machine

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

AbdurRakib

24 Jun 2016, 12:36

426

17

46,582

by: Gmat860sanskar

04 May 2026, 10:02

ER

M and N are integers such that 6<M<N.What is the value of N?

655-705 (Hard) | Arithmetic +2 tags

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

1, 2

AbdurRakib

18 Jun 2021, 14:16

659

22

63,747

by: bumpbot

08 Sep 2025, 13:33

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If a and b are positive integers, is ³√ab an an integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

AbdurRakib

24 Jun 2016, 12:16

309

13

46,507

by: bumpbot

13 Jan 2026, 12:35

ER

What is the value of y?

805+ (Hard) | Algebra +2 tags

805+ (Hard) | Algebra, Arithmetic, Roots hide tags

GGMU

24 Jun 2016, 08:21

143

18

15,025

by: bumpbot

18 Sep 2022, 11:16

ER

Is rectangle ABCD a square?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

24 Jun 2016, 03:24

8

9

5,208

by: HKD1710

25 Jun 2016, 14:07

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

3,766

by: bumpbot

18 Feb 2022, 22:50

ER

What is the sum of 7 consecutive integers?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

24 Jun 2016, 03:20

1

3

4,570

by: Madhavi1990

03 Oct 2017, 11:21

ER

If X is a positive integer, is X even?

505-555 (Easy) | Multiples and Factors, Number Properties

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

Bunuel

24 Jun 2016, 03:12

4

3

3,271

by: bumpbot

08 Jul 2022, 07:01

ER

A store bought Q windows at $150 per window and W shelves at $75 per

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

24 Jun 2016, 03:11

8

7

3,300

by: bumpbot

14 Apr 2026, 13:13

ER

X is a two-digit positive integer. If the ratio between the units digi

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

24 Jun 2016, 03:10

4

7

2,370

by: bumpbot

27 Jan 2021, 09:06

ER

Is 1/(5 - x) > x/5? (1) x < 8. (2) x > -8.

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

24 Jun 2016, 03:08

4

7

2,428

by: bumpbot

14 Jan 2022, 06:47

ER

A train traveled from station X to station Y at a constant speed of 88

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

23 Jun 2016, 03:01

87

13

21,330

by: bumpbot

10 Sep 2025, 05:09

ER

What is the value of P?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

23 Jun 2016, 02:13

5

2,469

by: Nightfury14

23 Jun 2016, 03:54

ER

If A = 2B, is A^4 > B^4?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

23 Jun 2016, 02:12

13

5

3,070

by: bumpbot

19 Jan 2022, 03:05

ER

How many of the girls in a group of 200 children have an average score

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

23 Jun 2016, 02:07

1

5

3,323

by: bumpbot

03 Oct 2020, 22:21

ER

What is the circumference of circle O?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

23 Jun 2016, 02:06

1

9

3,457

by: Krabhay

18 Dec 2018, 23:44

ER

A spaceship in orbit rotates around the planet Pluto. How many full

Sub 505 (Easy) | Distance and Speed Problems, Geometry

Sub 505 (Easy) | Distance and Speed Problems, Geometry hide tags

Bunuel

23 Jun 2016, 02:05

6

4,148

by: CrackverbalGMAT

09 Nov 2021, 03:30

ER

If Q and T are integers, what is the value of Q?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

23 Jun 2016, 02:04

15

6

4,683

by: deepak.brijendra

10 Jan 2024, 03:58

ER

If A is an integer, is the square root of A an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

23 Jun 2016, 02:03

8

4

3,134

by: bumpbot

30 Mar 2021, 09:00

ER

X and Y are the lengths of two non-hypotenuse sides of a right triangl

555-605 (Medium) | Geometry, Number Properties

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

Bunuel

23 Jun 2016, 02:00

15

5

4,113

by: bumpbot

14 Sep 2023, 08:45

ER

There are 3 integers, a, b, and c in that order. Are these integers co

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

MathRevolution

22 Jun 2016, 20:52

22

13

4,839

by: deepak.brijendra

06 Sep 2023, 07:20

ER

A circle has the same area with a rectangle. What is the circumference

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

MathRevolution

21 Jun 2016, 17:29

3

4

5,505

by: Kinshook

12 Jul 2022, 21:30

ER

What is the hundreds digit of the integer Z?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

Skywalker18

20 Jun 2016, 11:14

113

8

33,719

by: bumpbot

15 Jul 2025, 20:01

ER

What is the standard deviation of the values of the 20 coins in a

Sub 505 (Easy) | Statistics and Sets Problems

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

Skywalker18

20 Jun 2016, 11:09

26

5

21,560

by: Bunuel

27 Dec 2023, 23:54

ER

Last month a phone company charged $ 0.07 per minute for the first 300

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Skywalker18

20 Jun 2016, 11:04

189

18

40,661

by: bumpbot

21 Apr 2026, 03:10

ER

If P is an integer, is

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VenoMfTw

20 Jun 2016, 04:05

3

1,503

by: chetan2u

20 Jun 2016, 07:41

ER

What is the value of x^2 - y^2?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Mangeshkhuspe

19 Jun 2016, 12:48

11

12

3,883

by: bumpbot

21 Jan 2022, 06:59

ER

What is the tens digit of the positive integer n ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Skywalker18

19 Jun 2016, 10:33

138

9

29,222

by: bumpbot

07 Apr 2025, 09:36

ER

A certain company has 255 employees. If an employee is to be selected

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

1, 2

unuk50

19 Jun 2016, 05:17

171

20

40,415

by: bumpbot

30 Mar 2025, 15:12

ER

In the figure above, point D is on AC. What is the degree measure of

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

17 Jun 2016, 05:25

38

17

34,859

by: GMATinsight

02 May 2021, 21:53

ER

In the x-y plane there is a line K, (x/a)+(y/b)=1. What is the x-inter

555-605 (Medium) | Functions and Custom Characters

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

MathRevolution

16 Jun 2016, 20:37

13

5

6,027

by: bumpbot

15 Feb 2024, 02:45

ER

The only articles of clothing in a certain closet are shirts, dresses,

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

16 Jun 2016, 06:05

301

19

46,673

by: goaltop30mba

30 Jul 2025, 15:23

ER

If x is a positive integer, then is x prime? (1) 3x + 1 is prime

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

11 Mar 2026, 11:02

410

15

64,350

by: Saurav1408

04 May 2026, 08:19

ER

A group consisting of several families visited an amusement park where

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

16 Jun 2016, 06:03

327

18

50,756

by: bumpbot

05 Feb 2026, 23:28

ER

If x is a positive integer, what is the value of (x + 24)^(1/2) - x

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

16 Jun 2016, 05:48

313

15

64,752

by: bumpbot

09 Oct 2025, 05:06

ER

Jazz and blues recordings accounted for 6 percent of the $840 million

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

16 Jun 2016, 05:45

116

13

34,579

by: bumpbot

19 Aug 2025, 07:45

ER

On the number line, point R has coordinate r and point T has coordinat

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

16 Jun 2016, 05:44

605

17

62,628

by: SirSanguine

12 Sep 2024, 05:32

ER

Three dice, each of which has its 6 sides numbered 1 through 6, are to

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

16 Jun 2016, 05:43

232

16

41,469

by: bumpbot

20 Mar 2026, 07:01

ER

If the positive integer n is added to each of the integers 69, 94, and

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

16 Jun 2016, 05:41

735

17

61,801

by: bumpbot

31 May 2025, 11:03

ER

Was the number of books sold at Bookstore X last week greater than the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

19 Jun 2021, 04:01

363

14

49,206

by: Bunuel

01 Feb 2026, 00:48

ER

In each game of a certain tournament, a contestant either loses 3 poin

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

1, 2

Bunuel

16 Jun 2016, 04:25

267

21

43,036

by: GmatKnightTutor

25 May 2025, 05:22

ER

In a product test of a common cold remedy, x percent of the patients

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

16 Jun 2016, 04:24

148

11

33,882

by: bbb1923

03 Jun 2025, 14:27

ER

In cross section, a tunnel that carries one lane of one-way traffic is

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

1, 2

Bunuel

16 Jun 2016, 03:51

120

24

34,800

by: bumpbot

19 Jul 2025, 05:20

ER

In each of the last five years, Company K donated p percent of its

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

16 Jun 2016, 03:49

65

12

27,843

by: bumpbot

05 Jan 2026, 09:30

ER

George has a total of B books in his library, 25 of which are hardcove

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

16 Jun 2016, 03:47

140

16

39,974

by: SillyCat

29 Jun 2025, 18:06

ER

What is the value of t?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

1, 2

Bunuel

16 Jun 2016, 03:26

33

20

25,929

by: bumpbot

25 Feb 2025, 03:56

ER

If u > 0 and v > 0, which is greater, u^v or v^u?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

16 Jun 2016, 03:17

99

19

30,647

by: mohakgarg10

04 Oct 2025, 23:09

ER

If y ≠2xz, what is the value of (2xz + yz)/(2xz – y)?

505-555 (Easy) | Algebra, Number Properties

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

AbdurRakib

15 Jun 2016, 03:30

114

18

34,948

by: bumpbot

01 Nov 2025, 07:46

ER

Jill has applied for a job with each of two different companies. What

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

1, 2

AbdurRakib

03 Aug 2021, 02:51

603

31

71,515

by: bumpbot

17 May 2025, 13:38