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

178

15

78,896

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

857

24

188,631

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

488,105

by: bb

29 Aug 2025, 13:27

ER

A certain health club offers only yoga classes and spin classes.

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

07 Aug 2024, 01:30

10

6

2,121

by: bumpbot

24 Aug 2025, 08:05

ER

Whenever Sally takes a cab and the fare is between $15 and $

605-655 (Medium) | Percent and Interest Problems

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

SoniaSaini

27 Jan 2011, 09:30

19

6

9,092

by: bumpbot

23 Aug 2025, 05:48

ER

If n is an integer, is n|n| > 3^n? (1) n < -1 (2) n = -11

Sub 505 (Easy) | Absolute Values, Inequalities

Sub 505 (Easy) | Absolute Values, Inequalities hide tags

Bunuel

19 Sep 2019, 01:53

11

6

3,244

by: Bunuel

23 Aug 2025, 01:45

ER

In a Physics class of a science course, there are N students

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

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

amanvermagmat

26 Mar 2018, 00:41

3

6

1,636

by: bumpbot

22 Aug 2025, 10:51

ER

What is the units digit of a positive integer n?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

MathRevolution

08 Jun 2017, 00:54

4

6

2,898

by: EthanTheTutor

21 Aug 2025, 19:57

ER

If x and y are positive, is 3x > 7y? (1) x > y + 4 (2) -5x < -14y

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

mehdiov

05 Nov 2018, 00:25

44

6

24,081

by: bumpbot

21 Aug 2025, 15:58

ER

Allen invested 2400 dollars for one year earning y percent simple inte

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

16 Dec 2019, 01:37

3

6

3,219

by: bumpbot

20 Aug 2025, 16:33

ER

Each person in a certain group supports only one of two cand

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

fozzzy

23 Oct 2013, 05:47

96

6

30,328

by: bumpbot

19 Aug 2025, 22:05

ER

If j is a positive integer, is (j^3-27)^2(j^3+1)^3 odd?

555-605 (Medium) | Algebra, Number Properties

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

Bunuel

12 Oct 2015, 22:24

4

6

3,161

by: bumpbot

18 Aug 2025, 10:31

ER

All of the members of club Y are either Democrats or Republi

555-605 (Medium) | Fractions and Ratios

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

sonibubu

14 Sep 2013, 07:08

60

6

15,842

by: bumpbot

13 Aug 2025, 13:56

ER

Price increased by M% from 1991 to 1992 and by N% from 1992

655-705 (Hard) | Percent and Interest Problems

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

Bunuel

06 Aug 2025, 10:38

31

6

10,217

by: bumpbot

07 Aug 2025, 07:41

ER

Is |x + 1| + |x - 2| < 4 ?

705-805 (Hard) | Absolute Values, Inequalities

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

cnsih1532

16 May 2020, 06:46

27

6

4,909

by: bumpbot

06 Aug 2025, 06:24

ER

If x is a positive integer, what is the units digit of x?

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

serena32

11 Oct 2016, 21:54

26

6

11,552

by: bumpbot

05 Aug 2025, 14:10

ER

If a and b are single-digit positive numbers and a/b is NOT a recurrin

705-805 (Hard) | Inequalities +2 tags

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

Bunuel

29 May 2015, 06:22

33

6

7,377

by: bumpbot

05 Aug 2025, 04:39

ER

If b = 3a, is the average (arithmetic mean) of the five terms in the

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

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

Bunuel

11 Feb 2022, 02:30

16

6

4,142

by: bumpbot

28 Jul 2025, 11:00

ER

A certain expressway has Exits J, K, L, and M, in that order. What is

505-555 (Easy) | Arithmetic, Coordinate Plane

505-555 (Easy) | Arithmetic, Coordinate Plane hide tags

Bunuel

30 Jul 2012, 02:12

71

6

30,783

by: bumpbot

26 Jul 2025, 04:47

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

20,667

by: harsha77

24 Jul 2025, 09:43

ER

How many cylindrical cans with a radius of 2 inches and a height of 6

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

damham17

22 Nov 2018, 04:01

72

6

12,111

by: Bunuel

23 Jul 2025, 14:23

In a city, there are 400 people who are member of one or more of three

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

amanvermagmat

04 May 2018, 00:29

9

6

2,767

by: bumpbot

21 Jul 2025, 10:15

ER

A box has at least one ball of each of the colors red, green, and blue

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

01 Jun 2022, 03:30

7

6

7,509

by: bumpbot

21 Jul 2025, 08:45

ER

Cerenity and Jas rented a jet ski for an afternoon. The rental fee for

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

25 Apr 2018, 23:30

4

6

2,068

by: GMATinsight

20 Jul 2025, 07:53

ER

What is the value of (2a + 6a − 3b)/(2a − b)?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

01 Sep 2021, 04:30

7

6

3,598

by: bumpbot

19 Jul 2025, 18:09

ER

In the figure above, what is the perimeter of ΔPQR ?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

gmatt1476

21 Sep 2019, 18:40

62

6

15,309

by: bumpbot

19 Jul 2025, 01:46

ER

The chart above shows how Jeff spent his earnings for one year. How mu

Sub 505 (Easy) | Graphs and Illustrations

Sub 505 (Easy) | Graphs and Illustrations hide tags

GMATBusters

06 Nov 2018, 09:51

9

6

6,729

by: bumpbot

18 Jul 2025, 08:28

ER

A total of 9 women and 12 men reside in the 21 apartments that are in

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

15 Dec 2014, 09:26

13

6

11,706

by: bumpbot

18 Jul 2025, 03:42

ER

In the sequence a1,a2,…,an,…,a1=x and an=y–zan−1 for all n>1. Is a3>a2

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

02 Feb 2015, 07:19

48

6

8,366

by: bumpbot

17 Jul 2025, 04:02

ER

In the equation x^2+bx+c=0, b and c are constants, and x is

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

02 May 2021, 06:45

12

6

3,107

by: abhishkl

17 Jul 2025, 00:39

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

18,865

by: agrasan

16 Jul 2025, 22:31

ER

What is the greatest integer factor of x if both x and y are integers?

655-705 (Hard) | Multiples and Factors

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

Bunuel

31 Jul 2018, 22:02

14

6

5,314

by: bumpbot

16 Jul 2025, 11:18

ER

If n is a positive integer, is 169 a factor of n?

655-705 (Hard) | Multiples and Factors

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

Bunuel

24 Jul 2019, 08:00

32

6

6,654

by: bumpbot

15 Jul 2025, 14:38

ER

S = x^3 +3^x. Is S > 0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

MINDPOWER

11 Oct 2015, 13:07

15

6

3,688

by: bumpbot

14 Jul 2025, 10:46

ER

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

Sub 505 (Easy) | Absolute Values, Inequalities

Sub 505 (Easy) | Absolute Values, Inequalities hide tags

Carcass

31 Oct 2018, 22:10

17

6

7,704

by: bumpbot

11 Jul 2025, 15:58

ER

What was the median monthly number of gallons of water used by the

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

08 Aug 2023, 05:00

26

6

13,919

by: bumpbot

10 Jul 2025, 02:28

ER

How many shirts does Phil own? (1) 12 of Phil's shirts are dress shirt

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

30 Jul 2018, 05:56

3

6

4,075

by: bumpbot

08 Jul 2025, 23:25

ER

On 1st January of a certain year, Jones invested a total of $10000 u

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

Abhi077

29 Dec 2020, 08:49

11

6

3,304

by: bumpbot

06 Jul 2025, 19:19

ER

The numbers above form a sequence, t1, t2, and t3 , which is

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

mmcooley33

13 Dec 2010, 07:59

57

6

10,440

by: bumpbot

04 Jul 2025, 13:09

ER

X and Y are sets of positive integers. Is the greatest integer in X gr

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

anairamitch1804

09 Feb 2017, 11:40

14

6

10,220

by: bumpbot

02 Jul 2025, 13:58

Kunal takes ‘a’ days to complete a work while Sandeep takes ‘b’ less d

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

Subhajit007

10 May 2019, 02:07

13

6

4,431

by: bumpbot

01 Jul 2025, 13:09

ER

Is a + b > c + d ?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

20 Mar 2016, 23:43

6

10,217

by: bumpbot

30 Jun 2025, 12:48

ER

What was the median annual salary for the employees at Compan

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

21 Jun 2018, 09:20

20

6

23,104

by: bumpbot

29 Jun 2025, 11:32

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

11,319

by: bumpbot

28 Jun 2025, 01:12

ER

Is ac + ((a^2 - 1)(b^2 - 1))^(1/2) <= 1 ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

12 Sep 2022, 08:36

19

6

4,409

by: bumpbot

27 Jun 2025, 15:32

ER

If p and q are integers, is p^q >1 ? (1) pq < 0 (2) q^p < 1

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

push12345

02 Oct 2018, 06:07

24

6

7,545

by: bumpbot

26 Jun 2025, 22:22

ER

If m and n are positive two-digit integers, what is the value of the

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

Bunuel

06 Sep 2022, 06:20

20

6

7,117

by: bumpbot

25 Jun 2025, 21:41

ER

If n is a positive integer and 10^n is a factor of m, what

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

atalpanditgmat

26 May 2013, 09:16

111

6

13,860

by: bumpbot

25 Jun 2025, 08:30

ER

In May, Josep sold 40% of the computers that were sold by the store at

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

28 May 2022, 18:45

8

6

1,931

by: bumpbot

23 Jun 2025, 16:15

ER

Tonya has a contract to plant saplings along the median of a highway

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

righthand

09 Aug 2020, 04:40

26

6

5,919

by: bumpbot

23 Jun 2025, 15:46

ER

If x 0, is -4/x^3 negative?

Sub 505 (Easy) | Exponents, Inequalities

Sub 505 (Easy) | Exponents, Inequalities hide tags

RSOHAL

21 Dec 2015, 09:15

14

6

8,783

by: bumpbot

23 Jun 2025, 12:58

ER

Is the positive integer x prime?

555-605 (Medium) | Multiples and Factors

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

Bunuel

31 Jul 2018, 22:03

25

6

5,286

by: bumpbot

22 Jun 2025, 11:02

ER

Will the work be over in less than or equal to 9.5 days if two worker

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

GMATinsight

03 Jun 2025, 03:42

9

6

969

by: Bunuel

22 Jun 2025, 01:09