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

179

15

79,226

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

188,830

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

488,455

by: bb

29 Aug 2025, 13:27

ER

A gasoline mixture contains g liters gasoline, b liters benzene, and

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

03 Feb 2017, 08:13

3

4

4,603

by: bumpbot

17 Aug 2025, 06:04

If y is a positive integer, is y^2 - y divisible by 4 ?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

rxs0005

18 Feb 2012, 06:08

24

3

4,604

by: bumpbot

16 Nov 2020, 00:17

ER

If x are y are positive integers, what is the value of x+y

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

stonecold

21 Nov 2016, 21:59

13

7

4,604

by: bumpbot

17 Oct 2023, 10:59

ER

Does x = y? (1) z = u (2) ABCD is a parallelogram

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Oct 2017, 23:42

4

4,608

by: bumpbot

28 May 2020, 01:02

ER

If 20 percent of the students at a certain college take a writing clas

555-605 (Medium) | Overlapping Sets, Percent and Interest Problems

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

Bunuel

10 Feb 2020, 03:39

13

3

4,609

by: bumpbot

17 Jul 2025, 12:41

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If a, b, and c are positive integers, what is the value of c?

655-705 (Hard) | Algebra, Number Properties

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

Bunuel

03 Dec 2018, 05:50

17

7

4,611

by: Bunuel

09 Nov 2021, 09:31

ER

A bag contains ping pong balls, each with a number written on it. The

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

17 Jun 2018, 06:21

11

3

4,611

by: bumpbot

09 Aug 2025, 21:38

ER

In the diagram below, PQR is a triangle, right-angled at Q. A point S

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

23 Jul 2017, 23:22

17

5

4,612

by: bumpbot

24 Mar 2022, 02:09

ER

If r and s are positive numbers, what are the coordinates of the midp

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

14 Jan 2015, 02:28

8

4

4,612

by: bumpbot

17 Feb 2023, 07:24

ER

Is v − w < 0? (1) v − 2w < 0 (2) 5w − v < 0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

wunstepcloser

29 Jan 2022, 09:10

26

6

4,613

by: bumpbot

24 Dec 2023, 13:17

ER

What is the median number of books purchased per student in a certain

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

24 Mar 2021, 01:30

10

5

4,613

by: bumpbot

02 Nov 2025, 07:44

ER

What is the measure of angle ACB in the circle above with center O?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

04 Jun 2018, 09:00

2

5

4,614

by: Tuanguyen248

13 Jun 2018, 10:14

ER

If a, b, and c are real numbers, is a/b > b/c ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

hemanthp

21 May 2017, 05:56

14

8

4,615

by: bumpbot

28 Nov 2023, 11:17

ER

Given that A > 0 and C > 0, is (A + B)/(C + B) > A/C?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

23 Sep 2015, 03:29

21

10

4,619

by: singhall

06 Jul 2023, 09:34

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Given that A = 3y + 8x, B = 3y - 8x, C = 4y + 6x, and D = 4y - 6x

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

26 Jun 2015, 02:17

4

4,619

by: bumpbot

25 Dec 2024, 07:28

ER

In the quarter circle above, what is the area of the shaded region?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

17 Sep 2018, 22:20

15

13

4,620

by: David nguyen

11 Oct 2019, 18:23

ER

The centers of the three circles lie on one line (the circles intersec

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

01 Feb 2016, 05:09

8

6

4,620

by: ramlala

04 Apr 2021, 06:09

ER

The ratio of men to children on a tour is 8:3. How many men are there?

555-605 (Medium) | Fractions and Ratios

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

Kritesh

14 May 2017, 01:50

6

4

4,620

by: CrackverbalGMAT

11 Nov 2021, 01:54

ER

Is the area of the top of a rectangular pool larger than 1000 square f

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

24 Dec 2014, 08:50

4

7

4,621

by: bumpbot

15 Feb 2023, 12:47

ER

What are all the important considerations for making accurate

555-605 (Medium) | Non-Math Related

555-605 (Medium) | Non-Math Related hide tags

guddo

14 Aug 2024, 09:23

16

3

4,621

by: steffe440

09 Jan 2026, 07:07

ER

If X, Y and Z are non-zero numbers, is X^2−Y^3−2Z odd?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Manat

03 Feb 2019, 10:52

11

12

4,622

by: bumpbot

14 Dec 2023, 10:52

Is a = 0? (1) ab = 0 (2) a^2 = 0

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Carcass

01 Nov 2018, 05:01

1

3

4,622

by: bumpbot

12 Jul 2024, 03:14

ER

Is xy = -1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sugu86

27 May 2014, 00:54

4

7

4,623

by: bumpbot

08 Aug 2015, 10:37

ER

Is √p a non-integer? (1) p = r × 10 r, where r is a positive odd in

555-605 (Medium) | Exponents, Number Properties

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

Bunuel

03 Mar 2020, 04:01

20

6

4,623

by: bumpbot

12 Nov 2024, 08:41

ER

For positive integers x and y, x=19!+y. Is x a prime number?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

18 Apr 2017, 05:12

15

4

4,627

by: pappal

11 Nov 2025, 12:25

ER

Maria wants to send a package overseas. She can either pay shipping co

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

29 Sep 2015, 21:31

3

8

4,629

by: masoomjnegi

20 Dec 2018, 03:45

ER

How many numbers do the sets S and T have in common?

Sub 505 (Easy) | Statistics and Sets Problems

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

Carcass

31 Oct 2018, 12:16

2

4,629

by: BrentGMATPrepNow

13 Nov 2019, 09:04

ER

At the beginning of 1990, Jon and Krista each purchased a

505-555 (Easy) | Percent and Interest Problems

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

aditi1903

12 Oct 2012, 00:51

3

2

4,630

by: bumpbot

28 Dec 2022, 13:05

A bag contains four types of coins: 5-cent coins, 10 cent coins, 50-ce

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

RenB

19 Aug 2023, 01:00

24

4

4,630

by: bumpbot

17 Jul 2025, 05:16

ER

Is k odd? (1) 6k is an even number (2) 7k is an odd number

805+ (Hard) | Non-Math Related, Number Properties

805+ (Hard) | Non-Math Related, Number Properties hide tags

GMATBusters

30 Apr 2020, 22:33

39

6

4,630

by: bumpbot

11 Mar 2026, 19:29

ER

What is the value of (2x - 5)^3 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

10 Feb 2020, 05:22

2

3

4,632

by: Bunuel

14 Feb 2020, 06:11

ER

The cost of each crate of milk is $40 and each crate of eggs is $25.

Poor Quality

Poor Quality hide tags

kiran120680

22 May 2019, 08:21

3

4

4,632

by: ramlala

04 Mar 2021, 19:28

ER

How many miles long is the route from Danton to Griggston?

555-605 (Medium) | Distance and Speed Problems

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

rxs0005

15 Dec 2010, 08:26

3

5

4,632

by: bumpbot

22 Feb 2022, 06:58

ER

A certain bookstore sold 1/2 of the books in its stock. Then, after an

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

06 Mar 2020, 02:03

11

13

4,633

by: TheUnicorn

08 Mar 2020, 23:24

ER

Is x = 0? (1) x^2 y = x^3 y (2) x^2 / y = x^3 y

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

rxs0005

07 Feb 2012, 16:23

11

5

4,634

by: bumpbot

01 Jan 2022, 09:17

ER

What is the value of a^2b^2? (A) 2a + b = 12 (B) 3a + 3b = 27

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

07 Jan 2017, 03:46

3

4,635

by: Sumitj2016

09 Jan 2017, 03:10

ER

A right triangle has sides of lengths A and 2B and hypotenuse of lengt

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

21 Dec 2018, 02:20

11

4

4,635

by: bumpbot

06 Sep 2023, 10:37

ER

12 Days of Christmas GMAT Competition - Day 3: Mary sells both cookies

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

16 Dec 2022, 07:00

9

4

4,635

by: bumpbot

30 Sep 2025, 10:09

ER

2 circles have the same center and the smaller circle’s radius r is 5.

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

MathRevolution

29 May 2016, 20:54

3

4,636

by: MathRevolution

01 Jun 2016, 06:38

ER

The sum of the elements in set A is 700. Is the the number of elements

655-705 (Hard) | Arithmetic, Statistics and Sets Problems

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

Amby02

17 Jul 2017, 04:58

15

2

4,636

by: bumpbot

09 Jan 2024, 10:02

ER

Is A*B*C an odd integer? (1) A*B is an even integer (2) B*C is an even

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

25 Nov 2019, 02:23

28

6

4,636

by: bumpbot

25 May 2025, 14:46

ER

What is the average temperature from Monday through Saturday of a week

505-555 (Easy) | Statistics and Sets Problems, Word Problems

505-555 (Easy) | Statistics and Sets Problems, Word Problems hide tags

bhatiamanu05

18 Dec 2018, 23:24

4

4,637

by: Krabhay

18 Dec 2018, 23:22

ER

The shaded portion represents what percent of the area?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Pritishd

31 Aug 2020, 08:01

13

5

4,639

by: bumpbot

19 Dec 2022, 01:05

ER

If p is a positive integer, what is the remainder when p2-1 is divide

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

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

TheUltimateWinner

16 Sep 2020, 08:24

22

6

4,639

by: bumpbot

25 May 2025, 19:30

ER

If x < y, is x^2 > y^3 ? (1) |x|y < 0 (2) x^3 < y^3

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

DHAR

31 Jul 2017, 06:40

7

4

4,640

by: bumpbot

18 Jul 2020, 14:24

Lou recently painted his guest bedroom pale blue. the mixture of paint

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Nums99

01 Feb 2019, 21:18

6

4,640

by: bumpbot

08 Feb 2023, 08:56

ER

At a used book store, the books are divided into hardcovers, which sel

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Nov 2019, 03:21

1

3

4,640

by: bumpbot

03 Nov 2023, 03:41

ER

How many 4 member committee can be formed from a group of x men and y

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

Bunuel

12 Jan 2022, 06:30

14

7

4,640

by: bumpbot

05 Jan 2026, 06:01

ER

At a certain hotel, every room has air conditioning or cable TV

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

BrentGMATPrepNow

20 Sep 2016, 13:54

14

6

4,641

by: bumpbot

19 Feb 2024, 11:28

ER

Does line L pass through Quadrant II?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

GMATinsight

23 Jul 2015, 07:07

8

4

4,642

by: bumpbot

30 Jul 2023, 06:08