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

78,693

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

854

24

188,503

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

487,916

by: bb

29 Aug 2025, 13:27

ER

The ratio of television sets to radios at an electronic store before

655-705 (Hard) | Fractions and Ratios

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

Bunuel

16 Sep 2015, 04:17

30

7

10,001

by: bumpbot

01 Mar 2025, 02:17

ER

If a truck averages 20 miles per gallon of gasoline on the first third

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

28 Feb 2025, 01:30

1

721

by: ManifestDreamMBA

28 Feb 2025, 01:48

ER

Four houses are on Block B; from east to west the houses belong to the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

27 Feb 2025, 01:30

3

4

618

by: AVMachine

27 Feb 2025, 19:18

ER

What is the value of n in the equation - 25 + 19 + n = S ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

02 Feb 2023, 09:53

29

16

26,235

by: bumpbot

27 Feb 2025, 05:56

ER

The ratio of water and ammonia in solution A is 1 : 4; the ratio of

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

02 Jan 2025, 01:30

6

2

1,971

by: Capablanca

27 Feb 2025, 04:14

ER

If x, y and z are positive integers, is it true that x^2 is divisible

705-805 (Hard) | Multiples and Factors

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

Bunuel

19 Jan 2023, 02:30

9

13

2,463

by: bumpbot

27 Feb 2025, 00:53

ER

If x and y are positive integers, what is the result when the units di

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Bunuel

20 Apr 2020, 02:42

12

3,226

by: AVMachine

26 Feb 2025, 17:40

ER

People in a society read three kinds of newspapers, newspaper A or new

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

04 Feb 2025, 01:30

10

6

1,455

by: Spandam

26 Feb 2025, 08:34

ER

If University of Virginia's total expenditure for books, periodicals

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

26 Feb 2025, 01:30

2

572

by: GMATinsight

26 Feb 2025, 01:51

ER

Jason can drive from his home to his office by one of two possible

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

26 Feb 2025, 01:30

2

513

by: GMATinsight

26 Feb 2025, 01:46

ER

If y is a positive integer, is 3y odd? (1) y + 319 is even (2) y is n

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

01 Oct 2019, 07:39

3

2

1,982

by: bumpbot

25 Feb 2025, 22:14

ER

A number can be considered “purple” if it halfway between two perfect

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

09 Apr 2018, 01:57

28

16

7,437

by: bumpbot

25 Feb 2025, 22:07

ER

If x and y are nonzero integers, is x^y < y^x ?

605-655 (Medium) | Algebra +2 tags

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

Bunuel

27 Oct 2005, 16:28

231

11

34,292

by: bumpbot

25 Feb 2025, 13:36

ER

If x < y, is x^2 < y^2 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Feb 2014, 01:59

34

6

9,560

by: bumpbot

25 Feb 2025, 11:54

ER

David has 3 credit cards: a Passport card, an EverywhereCard and an

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 Feb 2024, 02:30

2

1,860

by: luigilosito

25 Feb 2025, 10:01

ER

If m, n are positive integers, what is the value of mn?

605-655 (Medium) | Multiples and Factors

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

Bunuel

23 Sep 2023, 08:15

4

2

1,527

by: Mahi2804

25 Feb 2025, 09:57

ER

What is the value of t?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

1, 2

Bunuel

16 Jun 2016, 03:26

33

20

25,890

by: bumpbot

25 Feb 2025, 03:56

ER

At a particular university with 200 students 30% receive only loans

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

25 Feb 2025, 01:30

2

1

608

by: ManifestDreamMBA

25 Feb 2025, 01:49

ER

If a and b are positive integers, how many digits does a*b have?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

07 Mar 2023, 01:35

4

2

1,799

by: Julioo

24 Feb 2025, 13:12

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At a particular university with 150 students 70% receive loans and 40%

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

24 Feb 2025, 01:30

7

3

714

by: NextstopISB

24 Feb 2025, 08:55

ER

If all of the 100 students that attended the fair rode the Ferris

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

24 Feb 2025, 01:30

7

3

1,014

by: NextstopISB

24 Feb 2025, 08:54

ER

If a^{2/3} - b^{2/3} = 12, then \sqrt[3]{a} + \sqrt[3]{b} = ?

805+ (Hard) | Algebra, Roots

805+ (Hard) | Algebra, Roots hide tags

Bunuel

06 Nov 2014, 09:02

45

9

11,434

by: bumpbot

24 Feb 2025, 07:45

ER

If the average (arithmetic mean) of four different positive integers

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

06 Oct 2021, 01:30

6

4

6,275

by: bumpbot

23 Feb 2025, 04:57

ER

In a rectangular coordinate system, are the points (x, y) and (w, z)

705-805 (Hard) | Absolute Values, Geometry

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

Bunuel

21 Jun 2021, 01:30

14

5

2,754

by: bumpbot

23 Feb 2025, 03:05

ER

Is w an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

19 May 2016, 03:30

23

8

13,502

by: bumpbot

22 Feb 2025, 22:43

ER

If n ≠ k, k ≠ 0, n ≠ -2, and n and k are integers, is 1/(n−k)>0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

25 Apr 2016, 04:02

10

4

5,506

by: bumpbot

22 Feb 2025, 12:52

ER

What is the selling price of the mixture if the ratio of the two qual

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Jul 2021, 05:30

2

2,198

by: bumpbot

22 Feb 2025, 09:45

ER

Three completely unmarked containers are used for measuring water. Wat

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

03 Nov 2014, 09:04

41

8

12,443

by: Fungano

22 Feb 2025, 09:31

ER

What is the value of x/2 ? (1) x is 1/5 less than 9/10 (2) x is

Sub 505 (Easy) | Arithmetic

Sub 505 (Easy) | Arithmetic hide tags

Bunuel

23 Sep 2022, 01:30

2

3,352

by: bumpbot

22 Feb 2025, 03:36

ER

If c is a positive integer less than 10 and n = 9446 + c, then what is

555-605 (Medium) | Multiples and Factors

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

Bunuel

16 Jul 2015, 01:18

8

9

5,581

by: bumpbot

22 Feb 2025, 03:21

ER

Each M-type unit will increase the base memory capacity of a certain

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

01 Oct 2015, 01:51

48

5

13,157

by: punwani7

21 Feb 2025, 12:49

ER

If University of Virginia's total expenditure for books, periodicals

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Feb 2025, 01:30

4

2

502

by: Gmat750aspirant

21 Feb 2025, 09:36

ER

Paula and Sandy were among those people who sold T-shirts to raise

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Feb 2025, 01:30

9

2

739

by: Gmat750aspirant

21 Feb 2025, 09:35

ER

In the morning, John drove to his mother's house in the

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

22 Mar 2013, 13:18

27

7

14,188

by: bumpbot

20 Feb 2025, 15:18

ER

If z is x percent of y, then what is the square root of z ?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

30 May 2023, 01:30

3

2

1,414

by: bumpbot

20 Feb 2025, 13:27

ER

What is the average (arithmetic mean) of a, b, c and d?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

08 Apr 2022, 01:30

4

3

6,841

by: bumpbot

20 Feb 2025, 12:33

ER

How long did it take Jason to drive nonstop at a constant speed from

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

20 Feb 2025, 01:30

4

639

by: AVMachine

20 Feb 2025, 06:48

ER

Two cars, A and B, each traveled a distance of 600 miles.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Feb 2025, 01:30

2

3

667

by: Gmat750aspirant

20 Feb 2025, 04:54

ER

In a sports event, a total of 50 students participated from either

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

08 Feb 2024, 14:17

13

8

4,034

by: bumpbot

19 Feb 2025, 22:45

ER

990 people went to the GMAT exam, how many boys didn't pass the test?

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

19 Feb 2025, 01:30

2

3

813

by: NextstopISB

19 Feb 2025, 09:29

ER

Jamal can drive from his home to his mother's house by one of two

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

19 Feb 2025, 01:30

2

3

724

by: NextstopISB

19 Feb 2025, 09:28

ER

If x is an integer greater than zero but less than integer n, is x is

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

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

Bunuel

29 Apr 2019, 06:18

10

5,870

by: bumpbot

19 Feb 2025, 08:09

ER

If m, n, and p as positive integers, is the expression m^2 + n^3 + p^5

705-805 (Hard) | Multiples and Factors

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

Bunuel

29 Dec 2023, 02:30

6

2

1,540

by: bumpbot

19 Feb 2025, 08:07

ER

Carrie, Lisa, and Betty all make purchases at a music store that sells

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

18 Feb 2025, 01:30

2

6

749

by: icrilov

18 Feb 2025, 18:13

ER

Is x > y ? (1) x^2 < y^2 (2) y < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

25 Jan 2022, 07:16

6

3

2,322

by: bumpbot

18 Feb 2025, 18:13

ER

Each of the 850 local villagers in Lucia owns either a Golden Retrieve

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

18 Feb 2025, 01:30

5

4

938

by: bhargavhhhhhhhh

18 Feb 2025, 08:55

ER

If x and y are positive integers, what is the remainder when x + y is

605-655 (Medium) | Multiples and Factors, Remainders

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

Bunuel

29 Mar 2023, 06:45

3

2

2,052

by: bumpbot

18 Feb 2025, 02:42

ER

Over a holiday weekend, a certain car dealer sold off 4/5 of the cars

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

17 Feb 2025, 01:30

4

722

by: GMATinsight

18 Feb 2025, 00:24

ER

If f(x) = x^3 + 9, is f(x) positive?

655-705 (Hard) | Functions and Custom Characters, Inequalities

655-705 (Hard) | Functions and Custom Characters, Inequalities hide tags

Bunuel

08 Feb 2017, 01:46

22

7

6,625

by: bumpbot

18 Feb 2025, 00:10

ER

Did Alberto pay more than N dollars for his new stereo, excluding the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

17 Feb 2025, 01:30

5

3

555

by: Whoisdmx15

17 Feb 2025, 10:58