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

78,657

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

188,479

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

487,873

by: bb

29 Aug 2025, 13:27

ER

If x and y are greater than 0, is x = 1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

PhillyBound

13 Aug 2011, 17:09

146

10

43,232

by: bumpbot

10 Mar 2025, 03:59

Aaron travels from town x to town y and then back from town y to town

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

philipssonicare

10 Oct 2018, 13:35

23

6

4,732

by: bumpbot

02 Jan 2025, 21:21

Is the quadrilateral PQRS shown as in the figure above equal to a rhom

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

philipssonicare

17 Sep 2019, 23:04

2

1,941

by: bumpbot

23 Nov 2023, 08:38

ER

A triangle is inscribed in a circle. The length of one of its sides is

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

philipssonicare

30 Sep 2018, 03:04

5

6

4,572

by: bumpbot

15 Mar 2023, 15:10

What is the perimeter of a parallelogram WXYZ as in the figure above?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

philipssonicare

26 Dec 2018, 03:01

7

3

2,868

by: bumpbot

14 Aug 2022, 02:36

ER

John has more coins than the number of coins both Tom and Jane have

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

philipssonicare

13 Jan 2019, 02:20

4

2

2,168

by: MahmoudFawzy

14 Jan 2019, 00:43

The ratio of number of boys to girls to adults in a certain museum is

555-605 (Medium) | Fractions and Ratios

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

philipssonicare

29 Dec 2018, 08:30

2

1,613

by: Kevin1553

31 Dec 2018, 06:43

ER

At a certain school with 200 students, all children must

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

pgmat

05 Jul 2012, 16:15

36

6

13,979

by: bumpbot

18 Jan 2026, 07:02

ER

Is |x| = y + z?

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

1, 2

pgmat

28 Nov 2013, 10:24

33

21

15,666

by: bumpbot

31 May 2024, 12:31

ER

The cost of buying x units of a certain product is given by the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

petu

05 Apr 2015, 08:45

11

3

3,352

by: Archit3110

02 Jul 2020, 08:19

ER

If a and b are positive, a% of what number is equal to b% of a?

555-605 (Medium) | Percent and Interest Problems

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

petu

19 Apr 2015, 11:39

2

3,094

by: EMPOWERgmatRichC

19 Apr 2015, 12:40

If L1, L2 and L3 are lines in a plane, is L1 perpendicular to L3?

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

petrifiedbutstanding

09 Apr 2011, 01:48

18

7

24,300

by: bumpbot

05 Nov 2025, 15:13

ER

there are 11 numbers in a set, is the median 20?

555-605 (Medium) | Min-Max Problems, Statistics and Sets Problems

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

petrified17

19 Sep 2017, 07:40

35

3

6,546

by: bumpbot

07 Jul 2025, 12:37

ER

There are n consecutive positive integers, what is the value of n?

Poor Quality

Poor Quality hide tags

petrified17

20 Sep 2017, 00:52

2

3

1,962

by: Bunuel

06 Jan 2019, 09:31

ER

If a certain positive integer is divided by 9, the remainder is 3.

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

peterpark

30 Apr 2017, 12:49

8

2

5,865

by: bumpbot

09 Jan 2024, 04:23

ER

In the decimal above, ♣ and x represent single digits. What

805+ (Hard) | Fractions and Ratios, Number Properties

805+ (Hard) | Fractions and Ratios, Number Properties hide tags

perseverant

03 Mar 2014, 14:07

50

13

13,052

by: bumpbot

05 Apr 2025, 03:45

ER

Is x^2 - y^2 even? (1) x + y is odd (2) x - y is odd

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Pepe

21 Nov 2010, 10:27

9

5

6,371

by: bumpbot

19 May 2024, 13:10

ER

Is the positive integer x divisible by each integer from 2 through 6 ?

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

pego2008

14 May 2016, 03:14

474

17

64,304

by: bumpbot

13 Feb 2025, 03:38

ER

If x^3 < x, is x > x^2 ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

peacewarriors

10 Feb 2014, 03:00

17

9

7,574

by: bumpbot

16 Jun 2025, 09:09

ER

Is x = y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

peacewarriors

08 Jul 2014, 02:03

8

7

2,949

by: bumpbot

29 Oct 2020, 02:43

A coordinate plane is shown in the figure..

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

peacewarriors

23 May 2014, 01:09

11

3

2,745

by: bumpbot

10 Dec 2019, 03:10

ER

Is x = 3? (1) (x - 4)(x - 3)/(x - 3) = 0 (2) (x – 4)(x + 4) = 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

peacewarriors

15 Jun 2020, 23:58

4

10

2,888

by: Bunuel

28 Sep 2019, 10:03

ER

Is the positive integer n the square of an integer?

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

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

Pdirienzo

19 Feb 2019, 10:50

112

13

13,075

by: Vishwesh08

18 Mar 2025, 10:11

ER

If z is an integer, is z even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

pchun008

29 Oct 2013, 00:07

10

4

8,324

by: bumpbot

20 Mar 2024, 06:34

ER

Tom can buy a certain type-writer for Z1 dollars in city X,

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

pb_india

02 May 2005, 12:49

10

4

4,105

by: bumpbot

24 Mar 2015, 23:41

ER

Will at least three identical cubes fit inside a cylindrical shipping

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

payalkhndlwl

25 Jun 2019, 23:02

23

7

6,119

by: bumpbot

06 Feb 2023, 07:48

ER

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

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

pavanbatra

17 Mar 2021, 12:55

23

4

5,381

by: bumpbot

08 Nov 2024, 01:57

ER

Is x^2 + y^2 > 3z

705-805 (Hard) | Algebra, Inequalities

705-805 (Hard) | Algebra, Inequalities hide tags

pavan2185

01 Sep 2013, 11:16

86

13

20,291

by: bumpbot

20 Jan 2025, 01:53

ER

In a freshman high school class there are 125 total students. If 75 of

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

PathFinder007

20 Sep 2014, 02:40

50

11

16,638

by: bumpbot

10 Oct 2025, 11:44

ER

Is x^2 > 2^x? (1) x is a prime number. (2) x^2 is a multiple of 9.

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

PathFinder007

27 Oct 2023, 12:42

15

7

6,265

by: bumpbot

21 Mar 2025, 08:55

ER

Is the slope of line q negative?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

PathFinder007

12 Jan 2015, 09:27

15

10

6,896

by: bumpbot

30 Jul 2023, 06:07

ER

Two line l and k intersect at a point (4, 3). Is the product of their

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

PathFinder007

12 Jan 2015, 12:19

47

11

10,272

by: bumpbot

29 Jul 2023, 23:30

ER

If [x] denotes the largest integer smaller than x, is [x]>[x]?

805+ (Hard) | Functions and Custom Characters

805+ (Hard) | Functions and Custom Characters hide tags

PathFinder007

14 Jul 2015, 10:44

32

7

8,644

by: Bunuel

25 Apr 2023, 00:52

ER

What is the radius of the circle shown?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

PathFinder007

02 Aug 2014, 10:24

19

10

13,711

by: bumpbot

05 Jan 2022, 19:50

ER

What is the area of the trapezoid shown?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

PathFinder007

01 Aug 2014, 08:54

85

12

28,437

by: goaltop30mba

03 Jan 2021, 19:32

ER

If c and d are positive, is d an integer ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

pathakshashi

23 Jul 2012, 01:40

10

3

5,904

by: bumpbot

11 May 2024, 10:11

ER

In how many ways can a coach select a 4-person university team from a

505-555 (Easy) | Combinations +2 tags

505-555 (Easy) | Combinations, Statistics and Sets Problems, Word Problems hide tags

1, 2

pate13

24 Aug 2015, 17:49

64

22

15,868

by: bumpbot

18 Apr 2025, 05:16

ER

What was the number of defective batteries in a shipment of

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

patanahi

31 Mar 2012, 11:42

11

8

7,737

by: bumpbot

16 Oct 2024, 12:08

ER

If x^2 does not equal 1, does x^2 + 1= a ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

PASSINGGMAT

16 Dec 2010, 14:58

18

8

4,938

by: bumpbot

12 Mar 2024, 02:09

ER

Each car at a certain dealership is either blue or white. What is the

Sub 505 (Easy) | Fractions and Ratios, Word Problems

Sub 505 (Easy) | Fractions and Ratios, Word Problems hide tags

parkhydel

28 Apr 2020, 04:12

27

5

13,072

by: Bunuel

25 Apr 2026, 04:44

ER

Was Store K's profit last month at least 10 percent greater than its

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

parkhydel

28 Apr 2020, 05:13

273

15

28,273

by: Paspad

03 Feb 2026, 11:12

ER

Is n less than 1? (1) n is less than 0.01 percent of 10,000. (2) n is

505-555 (Easy) | Inequalities, Percent and Interest Problems

505-555 (Easy) | Inequalities, Percent and Interest Problems hide tags

parkhydel

28 Apr 2020, 05:14

26

3

27,408

by: bumpbot

25 Jan 2026, 23:32

ER

Gross profit is equal to selling price minus cost. A car dealer's gros

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

parkhydel

28 Apr 2020, 05:16

7

3

9,561

by: bumpbot

16 Jan 2026, 02:53

ER

The range of the heights of a group of high school juniors and seniors

Sub 505 (Easy) | Statistics and Sets Problems, Word Problems

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

parkhydel

28 Apr 2020, 04:42

28

7

12,641

by: bumpbot

04 Jan 2026, 02:37

ER

The table shows the number of people who responded yes or no or d

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

parkhydel

28 Apr 2020, 05:04

496

15

33,734

by: bumpbot

04 Jan 2026, 01:49

ER

Yesterday Bookstore B sold twice as many softcover books as hardcover

805+ (Hard) | Statistics and Sets Problems, Word Problems

805+ (Hard) | Statistics and Sets Problems, Word Problems hide tags

1, 2

parkhydel

28 Apr 2020, 04:59

423

20

40,127

by: bumpbot

28 Dec 2025, 08:18

ER

If the average (arithmetic mean) cost per sweater for 3 pullover sweat

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

parkhydel

28 Apr 2020, 04:32

15

3

9,910

by: bumpbot

20 Dec 2025, 13:25

ER

A box contains only white balls and black balls. What is the probabili

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

parkhydel

28 Apr 2020, 04:14

16

4

12,916

by: bumpbot

20 Dec 2025, 13:22

ER

Did the population of Town C increase by at least 100 percent from the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

parkhydel

28 Apr 2020, 08:23

135

11

25,316

by: bumpbot

18 Dec 2025, 09:40

ER

A certain company consists of three divisions, A, B, and C. Of the emp

605-655 (Medium) | Statistics and Sets Problems, Word Problems

605-655 (Medium) | Statistics and Sets Problems, Word Problems hide tags

parkhydel

28 Apr 2020, 04:47

172

17

26,022

by: gmatftw777

28 Nov 2025, 02:29