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

78,859

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

856

24

188,605

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

488,049

by: bb

29 Aug 2025, 13:27

ER

Numbers a and b are positive integers. If a^4-b^4 is divided by 3

805+ (Hard) | Multiples and Factors +2 tags

805+ (Hard) | Multiples and Factors, Number Properties, Remainders hide tags

itisSheldon

28 Mar 2018, 05:57

191

13

12,551

by: Saupayan

02 Sep 2023, 14:58

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In x-y plane, does parabola y=ax^2+bx+c intersect to x-axis?

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

itisSheldon

06 Mar 2018, 11:40

19

4

6,268

by: bumpbot

07 Oct 2023, 13:09

ER

There are two tanks A, B. After 100 litres of water

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

itisSheldon

06 Mar 2018, 04:16

16

8

3,251

by: bumpbot

24 Apr 2025, 07:22

There are five homes. If the median price of a home is $200,000

705-805 (Hard) | Min-Max Problems, Statistics and Sets Problems

705-805 (Hard) | Min-Max Problems, Statistics and Sets Problems hide tags

itisSheldon

28 Mar 2018, 07:18

76

8

10,502

by: bumpbot

30 Nov 2025, 21:58

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What is the median number of employees assigned per project

555-605 (Medium) | Statistics and Sets Problems

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

1, 2

ITIZCODE

04 May 2012, 02:26

878

28

98,153

by: RAZANMURADI

09 Jun 2025, 07:30

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Is x=square root of x^2?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

ITMRAHUL

04 Dec 2012, 03:01

27

16

10,194

by: bumpbot

19 Jun 2023, 09:57

ER

If Pool Y currently contains more water than Pool X, and if

555-605 (Medium) | Fractions and Ratios

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

itnas

07 Dec 2010, 08:21

89

10

23,412

by: bumpbot

19 Jan 2026, 04:03

ER

What is the value of a^4 - b^4 ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

itspinky

04 Sep 2009, 17:56

134

13

25,108

by: bumpbot

25 Apr 2025, 01:44

A set S contains five numbers k, k + 1, 2k - 1, 5k + 7 and 6k + 8. If

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Poor Quality hide tags

itzmyzone911

03 May 2015, 22:42

3

10

3,401

by: teplyam

18 Jun 2015, 23:57

ER

Every item in an apparel shop has a tag that is either blue, green or

655-705 (Hard) | Percent and Interest Problems, Word Problems

655-705 (Hard) | Percent and Interest Problems, Word Problems hide tags

itzmyzone911

25 Apr 2015, 05:06

12

6

4,253

by: bumpbot

17 Jan 2026, 22:35

ER

If M is a finite set of negative integers, is the total number of inte

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

ivyph

18 Aug 2012, 10:35

88

11

38,079

by: bumpbot

09 Nov 2024, 09:57

ER

In a certain card game, the winning hand is the one where

555-605 (Medium) | Statistics and Sets Problems

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

iwillcrackgmat

03 Jun 2017, 17:37

1

3

2,476

by: Bunuel

03 Jun 2017, 17:38

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If 1/3 < z < 2/3, then what is the value of z?

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

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

iwillcrackgmat

09 Mar 2012, 10:37

49

4

9,001

by: bumpbot

01 Mar 2024, 07:39

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Is m > 0 ? (1) (m|n| - |mn|)/|m+n| < 0 (2) |m + n| > 0

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

J2S2019

26 Feb 2020, 03:22

8

4

2,629

by: MathRevolution

29 Feb 2020, 19:32

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If x and y are integers, and x + y < 0, is x — y > 0

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

jabhatta2

08 Apr 2018, 09:41

44

10

4,467

by: bumpbot

25 Nov 2022, 02:34

ER

Set M contains seven integers and set N contains three values chosen f

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

jabhatta2

28 Jul 2022, 09:50

22

7

3,394

by: pappal

09 Oct 2025, 12:28

ER

If 5a = 9b = 15c, what is the value of a + b + c?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

jabronyo

13 Jul 2013, 23:06

90

13

21,914

by: bumpbot

06 Jul 2025, 21:32

ER

The amount of Craig's dental bill was what percent greater tha

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

jack5397

06 Jun 2024, 03:48

5

3

3,472

by: bumpbot

14 Jun 2025, 05:16

ER

In triangle ABC, side AB is 5 inches and side BC is 7 inches. What is

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Jackal

05 Nov 2014, 07:53

11

4

5,793

by: bumpbot

06 May 2024, 17:59

ER

Is the integer x divisible by 6?

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

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

jackychamp

12 Jun 2014, 11:19

227

18

63,622

by: bumpbot

24 Apr 2025, 11:08

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Is xy > x^2*y^2? (1) 14*x^2 = 3 (2) y^2 = 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

jade3

16 Feb 2012, 22:37

36

17

28,286

by: bumpbot

22 Sep 2024, 02:54

ER

A certain bag contains only red balls, blue balls, and green

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

jadon

27 Jul 2014, 16:24

34

7

37,380

by: bumpbot

18 Mar 2025, 21:32

ER

If a and b are positive numbers, what is the value of a + b?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Jagan212

07 Aug 2020, 20:10

17

5

6,953

by: bumpbot

17 Mar 2025, 08:26

ER

What is the circumference of the circle above?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

JAI HIND

22 Dec 2005, 00:54

27

4

15,041

by: bumpbot

02 Aug 2024, 10:58

ER

If water is leaking from a certain tank at a constant rate, is it leak

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Jaikuz

14 May 2016, 13:14

90

10

30,446

by: bumpbot

27 Jan 2026, 04:50

ER

Of the 800 sweaters in a certain store, 150 are red. How

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

jairus

14 Jun 2023, 16:40

129

17

49,795

by: bumpbot

19 Aug 2025, 21:42

Is the positive integer p even? (1) p^2 + p is even (2) 4p + 2 is even

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

jaison6101

18 Apr 2020, 18:38

3

6,778

by: LeoN88

19 Apr 2020, 19:51

ER

If n is a positive integer greater than 16, is n a prime

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Jakevmi80

29 Mar 2012, 14:09

10

4

8,057

by: bumpbot

28 Jun 2023, 04:54

ER

Is the perimeter of triangle T greater than the perimeter of

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

jakolik

20 Jun 2013, 05:58

31

14

13,767

by: bumpbot

23 Aug 2023, 08:01

ER

If a and b are integers, is b even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

jakolik

16 Aug 2010, 06:57

34

9

14,824

by: bumpbot

11 Nov 2023, 03:53

ER

Professor Vasquez gave a quiz to two classes. Was the range of scores

Sub 505 (Easy) | Statistics and Sets Problems

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

jakolik

16 Aug 2010, 06:54

57

17

33,604

by: Marc.duquene

02 Dec 2023, 06:49

ER

A line of people waiting to enter a theater consists of 7

555-605 (Medium) | Number Properties, Word Problems

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

Jamesk486

20 Sep 2025, 01:28

65

10

19,711

by: joshuaa77

08 Nov 2025, 11:08

ER

Is quadrilateral ABCD a rectangle? (1) Line segments AC and

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

jamesrwrightiii

28 Aug 2007, 21:19

5

6

4,422

by: Bunuel

24 Sep 2014, 12:54

ER

x is an integer and x raised to any odd integer is greater

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

jamifahad

19 Jul 2012, 02:55

28

8

14,683

by: gurpreetsingh

19 Jul 2012, 03:01

ER

If x + y is an integer, is y an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

jamifahad

18 Jul 2011, 05:10

6

3,344

by: Bunuel

06 Dec 2017, 00:45

ER

What is the perimeter of rectangle ABCD ?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

jamifahad

29 Sep 2011, 06:05

18

10

15,107

by: bumpbot

13 Aug 2022, 06:49

ER

If x < p < q < y. Is |q - x| < |q - y|?

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

jamifahad

11 Jul 2013, 01:37

29

16

10,201

by: bumpbot

25 Mar 2023, 22:58

ER

Is x > 0? (1) x + y = 30 (2) y^2 > 10

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Jamil1992Mehedi

22 Mar 2018, 09:37

4

1,793

by: MathRevolution

24 Mar 2018, 18:33

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If xy 0, is x/y < 0?

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janani28

06 Oct 2014, 09:35

1

3

4,706

by: Carcass

31 Oct 2018, 11:44

ER

If a and b are distinct integers and their product is not equal to

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

janani28

01 Sep 2014, 12:09

157

9

16,121

by: bumpbot

26 Aug 2025, 23:04

ER

If x and y are integers great than 1, is x a multiple of y?

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

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

jananijayakumar

13 Aug 2010, 03:07

29

8

6,538

by: bumpbot

12 Sep 2023, 08:10

ER

A number of oranges are to be distributed evenly among a

705-805 (Hard) | Multiples and Factors, Word Problems

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

jananijayakumar

28 Aug 2010, 10:05

93

11

29,254

by: bumpbot

10 Jun 2025, 10:15

ER

The number of antelope in a certain herd increases every

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

jananijayakumar

26 Aug 2010, 02:40

143

17

34,187

by: Natansha

11 Dec 2025, 10:51

ER

In 1995 Division A of company had 4850 customers. If there

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

jananijayakumar

07 Sep 2025, 09:41

80

14

18,634

by: totaltestprepNick

02 Mar 2026, 07:51

ER

If w, x, y and z are integers such that w/x and y/z are integers, is

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

japped187

21 Oct 2019, 10:24

300

16

48,069

by: bumpbot

26 Apr 2025, 01:43

Am I 32 years old? (1) I am either 29 or 37 years old (2) I am over 35

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Jarinmeh

31 Aug 2024, 02:10

2

790

by: Jarinmeh

30 Aug 2024, 12:50

ER

What is the value of integer x?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

1, 2

jashshah

28 Feb 2015, 07:08

93

25

21,157

by: bumpbot

20 Sep 2025, 01:38

ER

If S is a set of ten consecutive integers, is the integer 5

555-605 (Medium) | Statistics and Sets Problems

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

Jasonammex

24 Aug 2011, 01:47

2

1

5,539

by: Bunuel

19 Feb 2012, 04:38

ER

What is the total value of Company H's stock?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Jasonammex

24 Aug 2011, 00:48

10

9

18,750

by: bumpbot

13 May 2024, 13:18

ER

If (y + 3)(y - 1) - (y - 2)(y - 1) = r(y - 1), what is the value of y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Jasonammex

01 Sep 2020, 05:31

30

12

15,420

by: bumpbot

22 Apr 2025, 04:21