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

78,893

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,621

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

488,103

by: bb

29 Aug 2025, 13:27

ER

Is ab < 12? (1) a < 3 and b < 4 (2) 1/3 < a < 2/3 and b^2< 169

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

11 Jan 2015, 12:41

8

9

4,583

by: bumpbot

18 Feb 2022, 12:33

ER

Can the positive integer y be expressed as the product of two integers

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

11 Jan 2015, 12:38

6

11

4,860

by: bumpbot

02 Jan 2026, 02:49

ER

Point (x, y) lies in which quadrant of the rectangular coordinate syst

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

11 Jan 2015, 12:32

9

3

9,748

by: bumpbot

14 Feb 2021, 11:49

ER

In the fraction a/b, where a and b are positive integers, what is the

655-705 (Hard) | Fractions and Ratios

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

Bunuel

11 Jan 2015, 12:24

11

8

3,648

by: bumpbot

13 Nov 2018, 20:27

ER

What is the measure of ∠ABX in the following figure?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

11 Jan 2015, 12:21

2

2,892

by: Bunuel

19 Jan 2015, 03:32

ER

The symbol © represents one of the following operations: addition, sub

Sub 505 (Easy) | Functions and Custom Characters

Sub 505 (Easy) | Functions and Custom Characters hide tags

Bunuel

11 Jan 2015, 12:14

4

5

6,862

by: EgmatQuantExpert

13 Feb 2019, 22:34

ER

Is Z an integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

AjChakravarthy

10 Jan 2015, 14:05

21

10

8,233

by: bumpbot

21 Apr 2020, 00:17

ER

What is the difference between the standard deviation of two five memb

505-555 (Easy) | Statistics and Sets Problems

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

sunaimshadmani

08 Jan 2015, 08:38

7

5

5,122

by: bumpbot

11 Jan 2024, 00:32

ER

Jim and Heather are in a line to purchase tickets for a music concert.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

07 Jan 2015, 07:44

12

5

4,755

by: bumpbot

30 Oct 2025, 18:38

ER

Triangle ABC is isosceles. What is the measure of angle BAC?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

07 Jan 2015, 07:36

14

8

17,068

by: bumpbot

25 Jan 2022, 09:16

ER

A bartender mixes drink A with drink B. If drink A contains 24 percent

505-555 (Easy) | Mixture Problems

505-555 (Easy) | Mixture Problems hide tags

Bunuel

01 May 2026, 11:05

15

7

8,439

by: NamDuong

15 Apr 2026, 23:59

ER

For a positive number x, {x} is the fractional part of x.

705-805 (Hard) | Fractions and Ratios, Functions and Custom Characters

705-805 (Hard) | Fractions and Ratios, Functions and Custom Characters hide tags

solitaryreaper

07 Jan 2015, 05:54

121

7

12,792

by: bumpbot

03 Jul 2025, 00:40

ER

How many people are in a certain elevator?(1) The average (arithmetic

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

03 May 2026, 10:29

8

5

3,495

by: bumpbot

27 Jan 2022, 12:59

ER

Last season, the Rally Cats won 40 percent of the first 45 games they

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

03 May 2026, 12:13

5

6

3,260

by: Bunuel

09 Jan 2015, 06:14

ER

Is 0 > ab?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

30 Dec 2014, 07:44

11

3,547

by: HKD1710

21 Aug 2016, 06:16

ER

What is the area of right triangle XYZ?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

minwoswoh

29 Dec 2014, 21:47

51

13

18,163

by: bumpbot

03 Apr 2024, 04:06

ER

Is z an odd integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

29 Dec 2014, 08:19

5

4,277

by: bumpbot

11 Jan 2021, 11:36

ER

José deposited a total of $ 10,000 into two interest-bearing accounts

555-605 (Medium) | Percent and Interest Problems

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

gmatmania17

29 Dec 2014, 05:28

7

3,846

by: EMPOWERgmatRichC

30 Dec 2014, 21:01

ER

If integer n is greater than 1, Does n have more than two distinct fac

655-705 (Hard) | Inequalities +2 tags

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

gmatmania17

29 Dec 2014, 05:16

23

10

5,288

by: bumpbot

14 Jan 2022, 07:11

ER

Is xy < -10? (1) 2 < x < 4 (2) -5 < y < -3

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

29 Dec 2014, 05:12

1

4

1,724

by: bumpbot

28 Jan 2022, 04:24

ER

Does positive integer x have a factor f such that 1 < f < x ?

655-705 (Hard) | Inequalities +2 tags

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

gmatmania17

29 Dec 2014, 05:11

33

15

5,646

by: bumpbot

12 Aug 2023, 10:04

ER

If n is a positive integer, is n odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

gmatmania17

29 Dec 2014, 04:00

2

3

3,137

by: EMPOWERgmatRichC

27 Nov 2017, 12:09

ER

Does the area of a certain square greater than the area of a certain

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

26 Dec 2014, 08:49

3

5

3,638

by: CCMBA

09 Jan 2015, 20:49

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

4,615

by: bumpbot

15 Feb 2023, 12:47

ER

If Mark saved an average (arithmetic mean) of $80 per week for 3 conse

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

23 Dec 2014, 07:20

10

8

9,247

by: bumpbot

26 Sep 2025, 09:27

ER

The figure above shows the circular cross section of a concrete water

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

23 Dec 2014, 07:16

23

13

16,322

by: bumpbot

01 Jan 2024, 19:26

ER

Dan took a 20-question multiple-choice test in psychology. If Dan answ

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:26

6

4

6,822

by: bumpbot

10 Jul 2024, 15:17

ER

In a serving of a breakfast cereal that contains only oats, raisins

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:24

4

8,363

by: g106

23 Dec 2014, 09:42

ER

In a certain coding scheme, each word is encoded by replacing each

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:20

3

3,759

by: g106

23 Dec 2014, 11:33

ER

Three friends rented a car for a week and divided the cost equally.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:17

97

11

29,962

by: bumpbot

15 Mar 2026, 19:14

ER

In the addition problem above, each of the symbols , , and represe

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

Bunuel

22 Dec 2014, 09:04

71

17

25,182

by: jpu2

18 Oct 2025, 23:41

ER

In the figure above, what is the length of AD?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

22 Dec 2014, 08:56

14

11

17,425

by: bumpbot

22 Oct 2025, 06:45

ER

A certain employee is paid $6 per hour for an 8-hour workday. If the

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 08:52

6

9,852

by: bumpbot

14 Dec 2025, 03:20

ER

If a total of 84 students are enrolled in two sections of a calculus

Sub 505 (Easy) | Overlapping Sets, Word Problems

Sub 505 (Easy) | Overlapping Sets, Word Problems hide tags

Bunuel

22 Dec 2014, 08:48

17

11

11,685

by: bumpbot

22 Oct 2023, 11:38

ER

If r is represented by the decimal 0.t5, what is the digit ?

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

22 Dec 2014, 08:45

35

11

16,152

by: bumpbot

01 Mar 2025, 07:24

ER

What was the percent increase in the value of a certain antique from

Sub 505 (Easy) | Percent and Interest Problems, Word Problems

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

Bunuel

22 Dec 2014, 08:43

9

6

9,698

by: bumpbot

17 Oct 2022, 03:09

ER

x^n = x^(n+2) for any integer n. Is it true that x > 0?

705-805 (Hard) | Exponents, Inequalities

705-805 (Hard) | Exponents, Inequalities hide tags

1, 2

viktorija

21 Dec 2014, 20:41

167

21

21,069

by: bumpbot

02 Nov 2025, 21:19

ER

If x is a two-digit prime number whose digits are the reverse of the

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

GMAT888

21 Dec 2014, 13:17

44

4

17,150

by: bumpbot

03 Jul 2024, 23:46

ER

Are all the angles in triangle ABC less than 90 degrees?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

honchos

02 May 2023, 10:08

5

5,843

by: Bunuel

02 May 2023, 10:09

ER

Is quadrilateral ABCD a rhombus?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

honchos

20 Dec 2014, 08:26

34

7

9,381

by: bumpbot

15 Jun 2023, 01:48

ER

If the function f is defined for all x by f(x)= ax^2+bx-43, where a an

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

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

Gmatdecoder

18 Dec 2014, 10:11

17

8

8,970

by: bumpbot

16 Jun 2025, 01:48

ER

If x and y are integers, is xy = yx? (1) x – y = 2 (2) xy = 8

555-605 (Medium) | Exponents, Number Properties

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

JusTLucK04

18 Dec 2014, 08:00

37

4

9,350

by: bumpbot

28 Aug 2023, 16:48

ER

The figure above represents the floor plan of an art gallery that has

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

19 Sep 2022, 08:36

137

13

25,761

by: Adit_

08 Apr 2026, 05:17

ER

A swim club that sold only individual and family memberships charged $

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

18 Dec 2014, 07:17

29

6

14,341

by: bumpbot

11 Aug 2024, 13:54

ER

Point (x, y) has in which quadrant of the rectangular coordinate syste

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Bunuel

18 Dec 2014, 07:16

10

4

10,589

by: bumpbot

07 Apr 2023, 00:52

ER

The regular price per eight-ounce can of brand X soup is $0.37, regard

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

18 Dec 2014, 07:14

7

3

8,521

by: bumpbot

28 Jan 2022, 00:55

ER

If n and k are greater than zero, is n/k an integer ?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

18 Dec 2014, 07:10

8

6

11,065

by: bumpbot

14 Jan 2023, 03:58

ER

Each number in the arrangement above is obtained from the two nearest

505-555 (Easy) | Arithmetic

505-555 (Easy) | Arithmetic hide tags

Bunuel

18 Dec 2014, 07:05

11

6

6,127

by: bumpbot

05 Apr 2022, 10:26

ER

If P, Q, and R are three distinct points, do line segments PQ and PR

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

18 Dec 2014, 07:02

12

6

14,413

by: bumpbot

11 Aug 2023, 20:53

ER

What is the area of a rectangular surface that has length x feet and

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

18 Dec 2014, 06:59

6

3

5,023

by: bumpbot

21 Nov 2018, 21:14