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

78,809

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,577

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

488,011

by: bb

29 Aug 2025, 13:27

ER

What fractional part of the total surface area of cube C is

555-605 (Medium) | Fractions and Ratios, Geometry

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

jaynayak

20 Jun 2013, 05:49

121

5

28,655

by: bumpbot

10 Sep 2025, 07:04

ER

A number of eggs dyed various colors were hidden for an egg hunt. How

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

17 Nov 2014, 12:49

19

5

6,890

by: bumpbot

10 Sep 2025, 10:00

ER

All the apartments in a certain building are either three-bedroom apar

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

gmatophobia

24 Feb 2024, 14:47

97

7

15,591

by: Bunuel

10 Sep 2025, 10:42

ER

In the figure above, points A, B, C, D, and E lie on a line. A is on

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Walkabout

05 Feb 2019, 23:15

343

13

68,143

by: bumpbot

10 Sep 2025, 10:48

ER

Let x and y be 2 positive integers such that x/y=12.12, what is the va

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

AkhilAggarwal

26 May 2021, 17:31

18

5

3,201

by: bumpbot

10 Sep 2025, 10:52

ER

John accidentally dropped a tray containing two glass bowls. The proba

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

05 Aug 2024, 08:45

1

2

1,207

by: bumpbot

10 Sep 2025, 11:44

ER

Is x - y > r - s ? (1) x > r and y < s (2) y = 2, s = 3, r = 5, and

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

hb

30 Sep 2022, 14:21

129

5

18,945

by: bumpbot

10 Sep 2025, 12:30

ER

During a certain year, what fraction of the 32 million union

605-655 (Medium) | Fractions and Ratios, Percent and Interest Problems

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

honey86

07 May 2014, 01:46

20

5

11,149

by: bumpbot

10 Sep 2025, 13:34

ER

The population of County X was 25,000 on January 1, 1998. During what

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

09 Sep 2025, 22:00

5

2

350

by: Souradeep17

10 Sep 2025, 17:42

ER

Mary has qualified to become a police officer. Has Albert qualified

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

02 Feb 2018, 00:01

12

9

2,949

by: bumpbot

10 Sep 2025, 18:51

ER

If Holliss gross hourly pay is increased by $2 per hour, how many few

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

09 Sep 2025, 22:00

5

3

419

by: Mehta17

10 Sep 2025, 20:41

ER

Is 7^7/7^x an integer?

655-705 (Hard) | Algebra +2 tags

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

aramjung

19 Mar 2010, 19:35

38

3

15,010

by: bumpbot

11 Sep 2025, 00:16

ER

From May 1 to May 30 in the same year, the balance in a

505-555 (Easy) | Percent and Interest Problems, Word Problems

505-555 (Easy) | Percent and Interest Problems, Word Problems hide tags

dkverma

25 Jan 2012, 11:55

223

17

38,416

by: bumpbot

11 Sep 2025, 01:36

ER

If Juan had a doctor's appointment on a certain day, was the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

eybrj2

13 Mar 2012, 20:38

80

12

20,871

by: bumpbot

11 Sep 2025, 01:44

ER

If x^(1/3) is a positive integer, does x^(1/3) have more than two dist

655-705 (Hard) | Exponents, Multiples and Factors

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

alphabeta1234

08 Apr 2012, 19:36

22

6

6,122

by: bumpbot

11 Sep 2025, 03:11

ER

20 books, each on a different subject, are placed on a shelf

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

amanvermagmat

24 Feb 2018, 00:12

3

2,812

by: bumpbot

11 Sep 2025, 05:04

ER

If x = n + 5, y = n + 3, and x, y and n are positive integers, what is

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

30 Jul 2020, 04:55

17

8

4,411

by: bumpbot

11 Sep 2025, 05:21

ER

Is quadrilateral RSTV a rectangle?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

shikhar

09 Jan 2019, 02:10

115

17

22,530

by: bumpbot

11 Sep 2025, 05:27

ER

If a and b are non negative integers, what is remainder when 11^a/b

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

RMD007

21 Jan 2017, 22:06

14

4

3,504

by: bumpbot

11 Sep 2025, 05:33

ER

What is the value of x? (1) x is negative. (2) 2x = -4

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

04 Nov 2022, 01:30

3

2

4,244

by: PSD927

11 Sep 2025, 05:37

ER

Is the standard deviation of numbers w, x, y and z greater than 2?

605-655 (Medium) | Statistics and Sets Problems

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

gmatrant

10 Aug 2010, 19:43

22

9

7,343

by: bumpbot

11 Sep 2025, 05:55

ER

Is the positive integer n equal to the square of an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

shikhar

22 Apr 2012, 01:38

46

6

15,330

by: PSD927

11 Sep 2025, 06:15

ER

What is the sum of the first four terms of sequence S?

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

AbdurRakib

01 Jul 2016, 04:57

95

10

26,992

by: bumpbot

11 Sep 2025, 06:40

A and B are two runners competing in a race on a circular track of

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

Gmat750aspirant

03 Mar 2025, 09:27

7

3

1,671

by: f3rn4nd44m0r1m

11 Sep 2025, 07:03

ER

Is x² + y² > -2xy? (1) xy > 0 (2) x - y = 4

655-705 (Hard) | Algebra, Inequalities

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

BrentGMATPrepNow

07 Mar 2023, 09:14

3

4

3,104

by: bumpbot

11 Sep 2025, 07:04

ER

Set X and set Y have 10 numbers each. Is standard deviation of set X

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

exam_explorer

11 Oct 2023, 03:42

7

5

1,916

by: bumpbot

11 Sep 2025, 07:33

ER

a and b are positive integers such that they do not have any common pr

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

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

kiran120680

06 Jun 2019, 09:30

23

8

4,495

by: bumpbot

11 Sep 2025, 07:50

ER

If x is positive integer, is 2x an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

14 Apr 2023, 09:45

6

2

1,393

by: bumpbot

11 Sep 2025, 07:54

ER

What is the remainder when the positive integer n is divided by 6?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

17 Nov 2023, 07:14

8

2

1,786

by: bumpbot

11 Sep 2025, 07:56

ER

Is the positive integer N a perfect square? (1) The number

655-705 (Hard) | Exponents +2 tags

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

1, 2

mbaMission

30 Jul 2012, 04:36

498

28

68,964

by: bumpbot

11 Sep 2025, 08:56

ER

If x > 0, what is the value of x ?

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

Carcass

26 Jul 2017, 09:05

101

8

24,345

by: bumpbot

11 Sep 2025, 11:34

ER

If 2^(x + y) = 4^8, what is the value of y?

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

1, 2

Bunuel

26 Oct 2015, 09:51

155

24

48,498

by: bumpbot

11 Sep 2025, 11:49

ER

What is the median value of the set R, if for every term in

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

rochak22

05 Jul 2021, 00:40

112

19

36,633

by: bumpbot

11 Sep 2025, 18:01

ER

In a random sample of 160 homeowners in a certain neighborhood

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

10 Sep 2025, 22:00

3

2

472

by: Souradeep17

11 Sep 2025, 18:01

ER

How much compensation did Nio receive for selling 21 home security

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

10 Sep 2025, 22:00

2

3

464

by: Souradeep17

11 Sep 2025, 18:07

ER

If a set of 6 positive integers has an average (arithmetic mean) of 53

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Jan 2018, 23:07

5

2

1,767

by: bumpbot

11 Sep 2025, 23:01

ER

At a certain coffee shop, all of the customers drink either coffee or

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

29 Oct 2015, 01:30

6

3

6,587

by: bumpbot

12 Sep 2025, 00:15

ER

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

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

PyjamaScientist

25 Oct 2021, 09:22

11

4

2,603

by: mahikapb

12 Sep 2025, 04:00

ER

In a certain company, the average (arithmetic mean) salary of finance

705-805 (Hard) | Statistics and Sets Problems

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

GMATBusters

07 Oct 2018, 05:26

13

14

3,866

by: bumpbot

12 Sep 2025, 04:32

ER

If a is a positive integer, is a^2 a multiple of 8 ?

655-705 (Hard) | Multiples and Factors

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

Bunuel

06 Apr 2022, 07:00

14

3

2,700

by: bumpbot

12 Sep 2025, 05:28

ER

If m is a positive integer, is m odd?

655-705 (Hard) | Multiples and Factors

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

Bunuel

31 Dec 2020, 01:15

7

6

3,929

by: bumpbot

12 Sep 2025, 06:57

ER

If m and n are integers, is (mn + 2)(mn + 3)(mn + 4) divisible by 12?

655-705 (Hard) | Multiples and Factors

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

Bunuel

26 Aug 2020, 23:37

18

12

5,799

by: bumpbot

12 Sep 2025, 07:32

ER

A shop offers candy bars for sale either individually or in packs of

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

11 Aug 2025, 05:16

12

4

7,083

by: bumpbot

12 Sep 2025, 09:19

ER

How many people in Town X read neither the World newspaper nor the Glo

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

gmatt1476

21 Sep 2019, 15:39

132

14

21,128

by: bumpbot

12 Sep 2025, 12:54

ER

When a positive integer 'x' is divided by a divisor 'd', the remainder

805+ (Hard) | Multiples and Factors, Remainders

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

Bunuel

09 Mar 2016, 13:36

129

9

14,395

by: bumpbot

12 Sep 2025, 14:56

ER

If x is an integer, what is the value of x?

805+ (Hard) | Absolute Values

805+ (Hard) | Absolute Values hide tags

1, 2

rohitgoel15

04 Dec 2012, 02:53

220

32

81,623

by: bumpbot

12 Sep 2025, 22:04

ER

If t is a positive integer and r is the remainder when t^2 + 5t + 6 is

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

dpark

23 Feb 2012, 15:21

387

18

48,313

by: bumpbot

13 Sep 2025, 02:03

ER

From a group consisting of ballet dancers from Italy, Germany, and

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

eshan429

04 Sep 2014, 20:29

31

8

8,380

by: bumpbot

13 Sep 2025, 07:15

ER

If r and s are consecutive even integers, is r greater than

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

enigma123

15 Feb 2012, 18:23

3

9

4,524

by: bumpbot

13 Sep 2025, 11:03

ER

What is the value of x? (1) x^4 + x^2 + 1 =1/(x^4 + x^2 + 1) (2) x^3

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

gmatt1476

21 Sep 2019, 16:35

122

12

19,123

by: bumpbot

13 Sep 2025, 11:08