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

80,037

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

189,056

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

488,797

by: bb

29 Aug 2025, 13:27

ER

There is a set of consecutive even integers. What is the

605-655 (Medium) | Statistics and Sets Problems

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

Jinglander

10 Aug 2010, 08:20

54

10

10,362

by: bumpbot

25 Jul 2025, 11:43

ER

If 25% of a company's employees are women older than 30, what percent

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

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

Bunuel

23 Jul 2025, 13:38

34

6

20,704

by: harsha77

24 Jul 2025, 09:43

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Is x = 4? (1) |x + 2| < 10 (2) |x + 5| > 10

605-655 (Medium) | Absolute Values, Inequalities

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

Bunuel

20 Apr 2018, 06:14

20

8

6,306

by: bumpbot

24 Jul 2025, 08:51

ER

Machine M, working alone at its constant rate, produces x widgets ever

605-655 (Medium) | Work and Rate Problems

605-655 (Medium) | Work and Rate Problems hide tags

violetsplash

24 Sep 2013, 08:29

424

19

73,878

by: Aboyhasnoname

24 Jul 2025, 04:01

ER

Kara attends a university where students study for an average

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

23 Jul 2025, 22:00

6

3

883

by: agrasan

24 Jul 2025, 01:03

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Is P positive? (1) P^3 = P (2) |P| = P

605-655 (Medium) | Absolute Values, Algebra

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

Hemavakade

16 Sep 2015, 12:31

23

10

5,147

by: Rahilgaur

23 Jul 2025, 04:34

ER

The cards in a deck are numbered consecutively from 1 to 20. If some

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

01 Jul 2018, 20:57

10

2

3,457

by: bumpbot

23 Jul 2025, 00:51

ER

Was the average (arithmetic mean) sale price of a new home in region R

605-655 (Medium) | Statistics and Sets Problems

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

Carcass

09 Jun 2023, 11:33

65

12

11,838

by: Ayushi2000

22 Jul 2025, 14:41

ER

Of the 600 students in a class, each French speaker also speaks German

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

10 Jul 2019, 08:00

38

16

9,904

by: bumpbot

22 Jul 2025, 12:13

ER

How many integers are greater than x, but less than y?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

25 Nov 2014, 08:26

21

8

8,239

by: bumpbot

21 Jul 2025, 03:29

ER

Is x>0 ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

BillyZ

11 May 2017, 02:34

13

14

6,490

by: bumpbot

21 Jul 2025, 03:11

ER

12 Days of Christmas GMAT Competition - Day 10: A certain electronics

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

1, 2, 3

Bunuel

27 Dec 2024, 09:00

64

51

4,751

by: finisher009

21 Jul 2025, 02:03

ER

In rectangular region PQRS above, T is a point on side PS. If PS = 4,

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

06 Mar 2023, 00:14

126

16

31,788

by: bumpbot

21 Jul 2025, 01:55

ER

Is x > 3? (1) The sum of x and the square of x is 12 (2) x^2 > 9

605-655 (Medium) | Algebra, Inequalities

605-655 (Medium) | Algebra, Inequalities hide tags

Bunuel

08 Oct 2015, 07:43

22

7

6,738

by: bumpbot

20 Jul 2025, 18:58

ER

In the equation x^2 + 2xy + y^2 = 144, is x positive? (1) y = 4 (2) x

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

15 Jul 2022, 01:30

12

2

1,804

by: bumpbot

20 Jul 2025, 17:41

ER

What is the value of j + k? (1) mj + mk = 2m (2) 5j + 5k = 10

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

24 Oct 2022, 08:59

16

4

2,168

by: bumpbot

20 Jul 2025, 17:36

ER

In an adventure sports club, Silver class membership is awarded to

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

03 Jul 2024, 01:30

11

5

1,915

by: bumpbot

20 Jul 2025, 12:42

ER

In a certain school district, math teachers are considered qualified

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

27 Oct 2021, 08:00

13

4

3,790

by: bumpbot

20 Jul 2025, 12:38

ER

Out of 25 Gryffindor students, 16 play chess, and 11 play quidditch.

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

13 Apr 2026, 06:55

20

3

4,338

by: bumpbot

20 Jul 2025, 11:20

ER

For integers x, y, and z, x = y^2. What is the value of z?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

HarveyS

08 Apr 2014, 16:01

228

17

23,786

by: bumpbot

19 Jul 2025, 19:04

ER

Is ((x-3)^2)^(1/2) = 3-x? (1) x ≠ 3 (2) -x|x| > 0

605-655 (Medium) | Absolute Values, Inequalities

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

1, 2, 3

gmatnub

24 Apr 2008, 17:42

1.2k

46

188,492

by: bumpbot

19 Jul 2025, 16:38

ER

There are 20 books in a bookcase. If one book is selected at random

605-655 (Medium) | Overlapping Sets, Probability

605-655 (Medium) | Overlapping Sets, Probability hide tags

Bunuel

02 Jun 2018, 13:36

21

7

7,000

by: bumpbot

19 Jul 2025, 11:50

ER

If N = 100x + 10y + z is a three-digit positive integer, is N divisibl

605-655 (Medium) | Multiples and Factors

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

Bunuel

10 Apr 2018, 06:35

8

4

6,272

by: bumpbot

19 Jul 2025, 03:44

ER

Two bicycle wheels, A and B, start rotating at constant speeds at the

605-655 (Medium) | Work and Rate Problems

605-655 (Medium) | Work and Rate Problems hide tags

Bunuel

22 Apr 2024, 01:30

31

10

3,334

by: bhanu29

18 Jul 2025, 22:09

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Point K = (A, 0), Point G = (2A + 4, (2A + 9)^(1/2)). Is the distance

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

TheKingInTheNorth

19 Aug 2018, 21:00

39

11

10,329

by: bumpbot

18 Jul 2025, 20:21

ER

Lee has three separate savings accounts. What is the total amount of

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 01:33

66

8

9,949

by: monarchme

18 Jul 2025, 01:19

ER

If abc 0, what is the value of ab/c?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

13 Nov 2022, 03:33

3

2,023

by: bumpbot

17 Jul 2025, 00:44

ER

Is y – x positive? (1) y > 0 (2) x = 1 – y

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

satishreddy

28 Oct 2010, 17:44

59

17

18,904

by: agrasan

16 Jul 2025, 22:39

ER

If r, s, and w are positive numbers such that w = 60r + 80s

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

udaymathapati

12 Sep 2010, 07:25

44

6

18,895

by: agrasan

16 Jul 2025, 22:31

ER

If [x] denotes the least integer greater than or equal to x, what is

605-655 (Medium) | Functions and Custom Characters, Number Properties

605-655 (Medium) | Functions and Custom Characters, Number Properties hide tags

Bunuel

04 Sep 2023, 05:00

6

4

2,229

by: bumpbot

15 Jul 2025, 14:45

ER

A survey of all the 100 employees in an organization revealed that 50%

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

22 Jan 2020, 01:46

19

14

3,698

by: bumpbot

14 Jul 2025, 10:32

ER

If 75 percent of the guests at a certain banquet ordered dessert, what

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

1, 2

Bunuel

14 Aug 2024, 08:50

411

28

69,186

by: Gambrosio

14 Jul 2025, 05:05

ER

If ax^2 + bx^3 = 5, where a and b are non-zero numbers, what

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

atalpanditgmat

19 Jun 2013, 14:39

22

7

8,206

by: bumpbot

12 Jul 2025, 12:53

ER

Is x an even number? (1) x^3 + x^2 = 0 (2) x^2 + |x| = 0

605-655 (Medium) | Absolute Values +2 tags

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

Bunuel

04 Dec 2018, 03:09

36

12

7,135

by: bumpbot

12 Jul 2025, 12:25

ER

If x and y are positive integers, what is the GCF of x and y

605-655 (Medium) | Algebra, Remainders

605-655 (Medium) | Algebra, Remainders hide tags

JJ2014

15 Dec 2012, 11:30

72

9

14,387

by: bumpbot

12 Jul 2025, 12:19

As part of a certain game in which a computer generated a ra

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

manishuol

25 Oct 2013, 14:24

6

3

3,198

by: bumpbot

12 Jul 2025, 09:20

ER

For each positive integer n, the integer n* is defined by n* = n^2 + 1

605-655 (Medium) | Functions and Custom Characters

605-655 (Medium) | Functions and Custom Characters hide tags

Bunuel

07 Nov 2017, 23:38

7

2

6,380

by: bumpbot

11 Jul 2025, 07:29

ER

If x and y are integers, is the value of x(y + 1) even?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

fozzzy

16 Mar 2013, 03:56

87

16

24,133

by: bumpbot

11 Jul 2025, 00:19

ER

At a certain company, a test was given to a group of men and women see

605-655 (Medium) | Statistics and Sets Problems

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

1, 2

rajman41

11 Nov 2017, 07:54

572

20

52,725

by: bumpbot

09 Jul 2025, 00:38

ER

Is ab > c ? (1) abc = 2 (2) c < 2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

sahilsahh

28 Jun 2024, 00:29

5

2

1,169

by: bumpbot

08 Jul 2025, 17:36

ER

In a certain group, the average (arithmetic mean) age of the males is

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

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

Bunuel

25 Jul 2018, 04:15

22

7

12,393

by: adithya000

08 Jul 2025, 12:10

ER

If sqrt(4a) is an integer, is sqrt (a) an integer

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

rxs0005

27 Oct 2013, 06:15

49

13

11,371

by: bumpbot

08 Jul 2025, 03:29

ER

If m, n and p are all digits greater than 1 and their sum is also a

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

26 Aug 2022, 06:30

3

4

1,205

by: peaky

07 Jul 2025, 12:57

ER

The positive integers x, y, and z are such that x is a factor of y and

605-655 (Medium) | Multiples and Factors, Number Properties

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

1, 2

amitgovin

15 Jul 2019, 04:59

200

24

60,898

by: bumpbot

07 Jul 2025, 00:29

ER

Larry saves x dollars per month. Will Larrys total savings one year

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

agnok

06 Oct 2010, 07:10

96

5

18,543

by: Shin0099

06 Jul 2025, 16:53

ER

An integer greater than 1 that is not prime is called composite.

605-655 (Medium) | Multiples and Factors, Number Properties

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

XxxyyY

25 Jun 2006, 16:05

387

19

72,377

by: Bunuel

06 Jul 2025, 12:57

ER

In how many ways can N students be seated in a row with N seats?

605-655 (Medium) | Absolute Values +2 tags

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

haardiksharma

13 Jun 2017, 05:42

23

5

10,491

by: bumpbot

06 Jul 2025, 05:53

ER

John and Beth each bought a used car at a purchase price of $12,000.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

andreaff877

06 Feb 2024, 16:38

64

4

10,183

by: bumpbot

05 Jul 2025, 07:48

ER

If the price of a certain item increased by x% from 2002 to 2003

605-655 (Medium) | Percent and Interest Problems

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

Bunuel

18 Jan 2010, 01:29

82

5

22,015

by: SanchitSanjay

04 Jul 2025, 20:53

ER

Bowls X and Y each contained exactly 2 jelly beans, each of which was

605-655 (Medium) | Combinations

605-655 (Medium) | Combinations hide tags

boomtangboy

08 Apr 2012, 09:44

184

14

39,968

by: bumpbot

04 Jul 2025, 12:08