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

78,850

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

188,600

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

488,045

by: bb

29 Aug 2025, 13:27

ER

The average of 6 numbers in a set is equal to 0. What is the

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

daviesj

14 Dec 2012, 09:26

45

10

11,258

by: HarshG7

08 Sep 2025, 22:36

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Is the median of set S even?

555-605 (Medium) | Statistics and Sets Problems

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

gmatcracker2010

12 Jun 2010, 11:51

26

7

11,262

by: bumpbot

01 Jan 2026, 05:37

ER

What is the value of |y − 1| ?

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

jlgdr

17 Sep 2013, 18:23

41

5

11,265

by: bumpbot

01 Mar 2025, 08:19

ER

If the list price of a new car was $12,300, what was the cost of the

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

03 Oct 2018, 03:29

9

8

11,270

by: bumpbot

17 Aug 2024, 09:18

ER

A set S contains the following elements: {7, 11, 15, 19, 23, x}. What

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

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

Bunuel

14 Feb 2016, 05:41

15

8

11,273

by: bumpbot

31 Mar 2024, 00:59

ER

If m, n, and p are three-digit integers and m + n = p

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

monsama

25 Aug 2014, 03:42

54

15

11,273

by: bumpbot

17 Jul 2025, 03:06

ER

Is x > y? (1) 9x = 4y (2) x = -y

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

GMATT73

05 Nov 2020, 06:37

44

11

11,277

by: bumpbot

22 Jul 2025, 22:55

ER

In the xy-plane, if line k has negative slope, is the y-intercept of

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Bluelagoon

14 Mar 2012, 01:04

78

7

11,281

by: bumpbot

13 Jan 2024, 04:51

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What is the thousandth term of S, a certain sequence of numbers?

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

23 May 2020, 06:59

73

11

11,282

by: bumpbot

29 Apr 2026, 09:09

ER

A report consisting of 2,600 words is divided into 23

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

haas_mba07

06 Sep 2006, 20:45

7

10

11,283

by: Bunuel

30 Jul 2015, 07:22

ER

If m and n are prime numbers, what is |m-n|?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

GMATBusters

04 Jan 2020, 19:13

23

9

11,288

by: AVMachine

30 Mar 2025, 04:59

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Is the number x between 0.2 and 0.7? (1) 560x < 280 (2) 700x > 280

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

23 Sep 2018, 21:08

12

4

11,291

by: bumpbot

11 Aug 2024, 13:43

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If x^(1/2)/y = n, what is the value of x?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Sep 2018, 21:39

13

6

11,294

by: bumpbot

03 Oct 2024, 08:04

ER

Each of the numbers w, x, y, and z is equal to either 0 or 1. What is

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

21 Oct 2019, 02:44

28

4

11,296

by: bumpbot

02 Mar 2025, 08:50

ER

If m is an integer greater than zero but less than integer n

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

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

ananthpatri

08 Apr 2014, 09:22

17

13

11,307

by: bumpbot

14 Oct 2023, 05:19

A clothing store sold a certain brand of shirts for X dollars each las

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

gmathero911

13 Apr 2024, 17:33

33

3

11,310

by: DonBosco7

29 Sep 2025, 22:14

ER

Rounded to the nearest 10,000, the populations of San Pepe

805+ (Hard) | Number Properties, Word Problems

805+ (Hard) | Number Properties, Word Problems hide tags

gmatophobia

12 Jan 2024, 22:58

93

9

11,313

by: KarishmaB

05 May 2025, 22:47

ER

What is the value of xyz?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

suk1234

26 Dec 2013, 10:45

28

19

11,314

by: Ankit__7182

24 Jun 2024, 06:21

ER

The original cost of a mobile was $799. Mr. Thomas increased the price

655-705 (Hard) | Percent and Interest Problems

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

Bunuel

26 Sep 2019, 04:46

37

6

11,317

by: bumpbot

28 Jun 2025, 01:12

ER

Hoses A, B, and C pump a swimming pool full of water. Hoses A and B

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

aashaybaindurgmat

14 Oct 2017, 01:20

57

7

11,318

by: bumpbot

14 Mar 2026, 00:49

ER

Four friends go to Macys for shopping and buy a top each. Three of th

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

15 Apr 2015, 04:55

77

14

11,327

by: bumpbot

23 Mar 2025, 17:29

ER

If all the employees of a company fall into one and only one of 3

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

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

Bunuel

23 May 2020, 07:55

32

6

11,327

by: nhiny1023

03 Dec 2025, 00:16

ER

Is x < z? (1) x = (1/2)y (2) y = 0.5z

605-655 (Medium) | Algebra, Inequalities

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

kairoshan

23 Mar 2023, 05:36

18

3

11,339

by: bumpbot

21 Mar 2023, 06:49

ER

How many factors does the integer X have?

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Algebra, Exponents hide tags

eladshush

04 Oct 2010, 06:16

43

13

11,339

by: bumpbot

26 Jul 2024, 05:34

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

11,341

by: bumpbot

08 Jul 2025, 03:29

ER

Two teams, X and Y played against each other in a tournament

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

eybrj2

18 Feb 2012, 01:54

32

5

11,343

by: bumpbot

21 Sep 2025, 15:52

ER

For all integers x and y, the operation  is defined by xy = (x+2)^2

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

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

Bunuel

18 Aug 2016, 07:38

15

5

11,344

by: bumpbot

02 Aug 2023, 02:38

ER

If x is not equal to zero, is |x| < 1 ?

605-655 (Medium) | Absolute Values, Inequalities

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

Carcass

01 Oct 2012, 05:50

57

8

11,349

by: bumpbot

20 Apr 2025, 00:34

ER

Is |x - 10| > |x - 30|? (1) x > 10 (2) x > 25

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

KaranB1

20 Jul 2019, 05:38

43

10

11,350

by: bumpbot

05 Aug 2025, 09:47

ER

At the beginning of last year, Tony's Auto Dealership had

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

rockroars

16 Dec 2010, 11:48

26

13

11,354

by: bumpbot

26 Aug 2025, 03:59

ER

How many days after the purchase of Product X does its stand

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Stiv

13 Mar 2025, 10:39

26

15

11,363

by: GMATGuruNY

19 Aug 2018, 03:30

ER

While on straight, parallel tracks, train A and train B are traveling

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

14 Nov 2014, 09:52

38

8

11,363

by: bumpbot

16 Nov 2024, 03:23

ER

Is 10^m < 5,000?

555-605 (Medium) | Exponents, Inequalities

555-605 (Medium) | Exponents, Inequalities hide tags

1, 2

shekar123

07 Jun 2010, 17:04

33

23

11,369

by: bumpbot

14 Jan 2021, 23:37

ER

A company has a total of 1,650 employees, some of whom are office work

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 02:13

43

4

11,369

by: Harsh_

14 Apr 2026, 07:42

ER

What is the slope of the line L ?

Poor Quality

Poor Quality hide tags

shivanigs

11 Sep 2012, 22:30

8

4

11,376

by: Bunuel

12 Sep 2012, 02:13

ER

Printing presses, Press A and Press B, are used to print the daily edi

555-605 (Medium) | Work and Rate Problems

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

gmatophobia

30 Dec 2023, 02:05

54

5

11,381

by: bumpbot

20 Mar 2026, 06:58

ER

Is a - 3b an even number?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

chetan2u

04 Feb 2021, 20:02

61

14

11,382

by: bumpbot

21 May 2023, 01:03

ER

Is ABCD rectangular

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

1, 2

skamal7

20 Jul 2013, 09:46

54

22

11,386

by: bumpbot

05 Feb 2023, 00:14

ER

What is the perimeter of triangle PQR ?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

adkikani

04 Jan 2023, 05:54

46

16

11,389

by: bumpbot

29 Dec 2025, 08:33

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In the figure above, lines l1 and l2 are parallel. What is the value

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

19 Oct 2019, 03:38

1

4

11,391

by: bumpbot

14 Sep 2022, 03:53

ER

Four book lovers have recently met and are not sure of the topics that

605-655 (Medium) | Non-Math Related, Word Problems

605-655 (Medium) | Non-Math Related, Word Problems hide tags

GMATCoachBen

06 Feb 2024, 19:07

65

8

11,391

by: thisisakr

26 Sep 2025, 02:32

ER

Three thousand families live in a certain town. How many families who

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

16 Oct 2019, 08:21

16

10

11,405

by: bumpbot

05 Nov 2023, 12:21

ER

If x, y and z are integers, what is y – z?

605-655 (Medium) | Exponents

605-655 (Medium) | Exponents hide tags

kingflo

21 Jul 2013, 08:14

43

19

11,405

by: bumpbot

08 Nov 2023, 17:26

ER

What is the area of square ABCD ?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Carcass

13 Sep 2012, 14:06

12

4

11,406

by: bumpbot

19 Apr 2023, 04:53

ER

Is x > y? (1) x/4 = y^2 (2) x > 1

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

jayoptimist

29 Jul 2012, 11:21

62

7

11,419

by: bumpbot

03 Oct 2024, 14:27

ER

Is |x + 1| > 6? (1) (x - 2)(|x| - 5) > 0 (2) x^2 < 4

705-805 (Hard) | Absolute Values, Inequalities

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

EgmatQuantExpert

09 Oct 2024, 00:06

58

9

11,421

by: bumpbot

08 Oct 2024, 23:13

ER

What is the area of circle O ? (1) The ratio of the area of the squar

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

23 May 2020, 07:54

20

6

11,425

by: bumpbot

11 Jun 2023, 02:02

ER

All of the m men and w women who were members of club G last year are

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

user22020

17 Feb 2024, 23:04

87

13

11,427

by: bumpbot

05 Jan 2026, 06:16

ER

For nonnegative integers x and y, what is the remainder when

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

JJ2014

15 Dec 2012, 11:35

43

19

11,429

by: bumpbot

03 May 2024, 11:12

ER

PQ and QP represent two-digit numbers having P and Q as their digits.

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

Bunuel

28 Jul 2017, 01:21

22

5

11,431

by: bumpbot

05 Jan 2025, 23:41