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

79,853

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

188,996

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

488,708

by: bb

29 Aug 2025, 13:27

ER

f(x) = ax + b. a and b are both positive numbers.

705-805 (Hard) | Functions and Custom Characters

705-805 (Hard) | Functions and Custom Characters hide tags

MIJI

27 Dec 2019, 02:12

13

4

4,132

by: bumpbot

15 Feb 2026, 03:29

ER

If neither x nor y is equal to 0, is 3x2y=0? (1) 27x^38y^3=0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

18 May 2022, 05:00

3

6

4,133

by: BrentGMATPrepNow

05 Jun 2022, 10:00

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If line k is in the xy–coordinate plane, what is the slope of k?

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Bunuel

27 Jul 2018, 03:10

6

5

4,133

by: bumpbot

01 Dec 2022, 09:47

ER

If x is the average of three integers a, b, and c, is x a multiple of

705-805 (Hard) | Arithmetic, Multiples and Factors

705-805 (Hard) | Arithmetic, Multiples and Factors hide tags

chetan2u

06 Jan 2018, 06:30

16

17

4,133

by: bumpbot

15 Nov 2023, 00:50

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Is |x| < 1 ? (1) x^4 - 1 > 0 (2) 1/(1 - |x|) > 0

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Poor Quality hide tags

sag

27 Jul 2010, 07:27

1

3

4,134

by: sag

28 Jul 2010, 00:24

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Is x > y? (1) 1/x < 1/y (2) 1/x > 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

21 Nov 2016, 02:42

17

7

4,134

by: bumpbot

07 Mar 2024, 04:44

ER

If x·y0, what is the value of x/y? (1) |x|=y (2) |y|=x

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

Bunuel

02 Mar 2021, 01:15

9

4

4,134

by: bumpbot

27 Jul 2024, 07:04

Rounded to the nearest thousand, the 2022-2023 revenues for Murtaugh

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

MT1302

21 Mar 2024, 08:32

18

3

4,134

by: prashratt

06 Dec 2025, 20:47

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If a = b/c, is a > b? (1) 0 < c < 1 (2) a > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

guerrero25

27 Sep 2023, 03:24

4

2

4,135

by: bumpbot

01 Jan 2026, 05:21

ER

If w + k = v, what is the value of k

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

rxs0005

14 Feb 2012, 05:37

9

6

4,136

by: bumpbot

27 Feb 2023, 00:02

ER

Is x a factor of y ?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

GMATBusters

24 Oct 2020, 19:01

5

17

4,136

by: bumpbot

25 Aug 2023, 03:36

ER

12 Days of Christmas GMAT Competition - Day 10: Is m+10 positive?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

23 Dec 2021, 07:00

11

6

4,136

by: bumpbot

12 Apr 2024, 11:04

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If m and n are positive integers, and x = 2^m3^m, is m < n ?

705-805 (Hard) | Exponents +2 tags

705-805 (Hard) | Exponents, Multiples and Factors, Number Properties hide tags

Bunuel

12 Sep 2022, 07:33

12

5

4,136

by: Bunuel

30 May 2024, 00:24

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Is |a - b| < |a| + |b|? (1) a/b <0 (2) a^2b < 0

655-705 (Hard) | Absolute Values, Inequalities

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

DHAR

03 Aug 2017, 09:35

12

6

4,138

by: Kinshook

24 Aug 2019, 01:43

ER

The students in a certain college class took a midterm exam and

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

09 Feb 2024, 02:30

13

5

4,138

by: Bunuel

11 Aug 2025, 00:21

ER

If m is a positive integer, is √m a prime number?

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

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

kiran120680

09 Jun 2019, 10:04

9

5

4,141

by: bumpbot

27 Jun 2024, 00:44

ER

A set S={10,1,5,a,b,6,c} where a,b&c are different positive integers,

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Poor Quality hide tags

kiran120680

13 Mar 2019, 02:25

11

12

4,142

by: GMATBusters

25 Mar 2019, 08:41

ER

Is x < 0? (1) x^2 - x > 0 (2) |x| < 1

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

01 Apr 2020, 02:30

14

9

4,142

by: bumpbot

18 Sep 2025, 08:13

ER

Find the perimeter of the rectangle ABCD, if the length and breadth ar

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

niteshwaghray

23 May 2017, 00:55

5

3

4,143

by: bumpbot

28 Aug 2018, 14:09

ER

The absolute difference between a two digit number and the number for

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

21 Jul 2021, 07:30

8

3

4,143

by: bumpbot

18 Jun 2025, 02:35

ER

If the remainder when positive integer x is divided by 7 is 4, what is

555-605 (Medium) | Number Properties, Remainders

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

Bunuel

04 Apr 2018, 22:05

2

5

4,145

by: bumpbot

07 Nov 2022, 06:07

ER

Is y < z ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Gnpth

07 Aug 2014, 11:37

9

11

4,145

by: bumpbot

05 Jul 2023, 05:16

ER

In a clock, what is the distance traveled by the tip of the hour hand

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

05 Sep 2018, 23:37

3

4,146

by: jrk23

20 Feb 2021, 13:18

ER

Is (a^2 - b^2)/2 an odd integer? (1) a-b is odd (2) a^2 + b^2 is odd

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

06 Apr 2020, 04:04

16

2

4,147

by: TestPrepUnlimited

28 Jun 2021, 11:51

ER

A bag contains r red, g green, and w white marbles, where r, g and w

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

13 May 2020, 01:57

22

5

4,147

by: bumpbot

28 Nov 2024, 18:19

ER

If px = qy, is x/y an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

mau5

19 May 2013, 07:49

9

4

4,147

by: bumpbot

26 Dec 2025, 00:01

ER

What is the median of prices?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

MathRevolution

26 Jun 2016, 07:40

13

4

4,148

by: bumpbot

07 Aug 2023, 07:03

ER

If |x – y| = 10, what is the value of x? (1) x > 0 (2) y = 12

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

26 Dec 2016, 10:59

5

11

4,148

by: bumpbot

01 Nov 2023, 21:08

ER

A box has only pure material A identical coins, pure material B identi

805+ (Hard) | Algebra +2 tags

805+ (Hard) | Algebra, Multiples and Factors, Word Problems hide tags

fskilnik

20 Feb 2019, 09:37

15

9

4,149

by: fskilnik

02 Sep 2023, 15:13

ER

Is a/b >0? (1) ab > 0 (2) b/a > 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Creeper300

07 Nov 2010, 13:40

3

2

4,150

by: LogicGuru1

18 Jul 2016, 04:13

ER

Is it possible for a wooden block in the shape of a rectangular solid

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

rakshitsood21

30 Aug 2020, 09:20

17

7

4,150

by: bumpbot

01 Aug 2025, 22:18

ER

If a, b, and c are integers. Is a + b + c even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

03 Dec 2018, 21:25

9

6

4,151

by: bumpbot

25 Nov 2022, 10:09

ER

If ab ≠ 0 and ax – by < 0, is x < y ? (1) a = b (2) a^3 > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

08 Sep 2021, 04:00

17

8

4,152

by: bumpbot

16 Jun 2025, 08:38

ER

If m and k are non-zero integers, is m a multiple of k?

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

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

Bunuel

16 Dec 2019, 02:43

11

4

4,152

by: bumpbot

19 Sep 2025, 02:12

ER

Each of the 75 professionals attending a conference is either a chef

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

06 Feb 2023, 07:10

22

6

4,152

by: KarishmaB

29 Dec 2025, 18:59

ER

Is the standard deviation of Set A greater than or equal to the standa

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

11 Apr 2018, 21:23

8

9

4,152

by: bumpbot

13 Jan 2026, 13:02

ER

Is |x-z| + |x| = |z|?

705-805 (Hard) | Absolute Values, Inequalities

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

noTh1ng

29 Jul 2015, 03:28

14

13

4,153

by: bumpbot

23 Jul 2019, 00:29

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

4,153

by: CrackverbalGMAT

09 Nov 2021, 03:30

ER

For integers m, how many positive perfect cubes would be less than m?

655-705 (Hard) | Inequalities, Number Properties

655-705 (Hard) | Inequalities, Number Properties hide tags

Bunuel

07 Nov 2019, 03:29

13

5

4,154

by: borjaapaolaza

26 May 2020, 15:41

ER

If n is a positive integer, what is the value of the hundreds digit of

555-605 (Medium) | Exponents +2 tags

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

Bunuel

19 Nov 2017, 23:40

17

7

4,154

by: bumpbot

24 Apr 2022, 07:39

ER

The management of a company reviews the performance of 15 employees

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

Aabhash777

01 Sep 2022, 03:56

13

8

4,154

by: VartikaKatara

01 Jun 2025, 04:09

ER

How many members of Group G are less than 25 years of age?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

07 Feb 2020, 06:21

4

5

4,155

by: Bunuel

08 Mar 2023, 05:02

ER

If a and b are non -zero distinct integers, what is the value of a + b

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

mangamma

30 May 2019, 04:41

17

7

4,155

by: bumpbot

20 Nov 2023, 01:23

ER

If AD = 10*3^(1/2) and ADC is a right angle, what is the area of

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

mikemcgarry

15 Aug 2014, 13:04

11

6

4,156

by: bumpbot

13 Apr 2022, 04:41

ER

If a and b are non-zero numbers, is a > b ?

705-805 (Hard) | Absolute Values, Inequalities

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

push12345

15 Nov 2018, 05:54

7

5

4,157

by: bumpbot

16 Apr 2020, 02:11

ER

Is the line L1 steeper than line L2?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

GMATBusters

25 Apr 2020, 19:45

7

13

4,158

by: jrk23

26 Apr 2020, 07:33

ER

Is x = 0? (1) xy = x (2) x + y = y

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

16 Feb 2021, 05:08

2

4

4,158

by: Bunuel

10 Nov 2021, 03:13

ER

Can regular exercise reduce the risk of chronic diseases?

Sub 505 (Easy) | Non-Math Related

Sub 505 (Easy) | Non-Math Related hide tags

guddo

14 Aug 2024, 09:38

13

9

4,158

by: JustKeepGoing

22 Mar 2026, 02:28

ER

What is the value of ab? (1) (a - 2) (b - 3) = 0 (2) b = 2

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Russ19

27 Jun 2020, 20:42

11

8

4,159

by: bumpbot

17 Jan 2024, 20:54

ER

If x is a negative integer, is x < −3? (1) x^2 + 6x < 7 (2) x^2 + |

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

05 Nov 2018, 00:29

14

7

4,160

by: Thekingmaker

28 May 2021, 07:27