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

80,159

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

858

24

189,115

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

488,871

by: bb

29 Aug 2025, 13:27

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

9,373

by: bumpbot

28 Aug 2023, 16:48

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

8,984

by: bumpbot

16 Jun 2025, 01:48

ER

Is quadrilateral ABCD a rhombus?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

honchos

20 Dec 2014, 08:26

34

7

9,416

by: bumpbot

15 Jun 2023, 01:48

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

5,863

by: Bunuel

02 May 2023, 10:09

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

17,176

by: bumpbot

03 Jul 2024, 23:46

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

21,133

by: bumpbot

02 Nov 2025, 21:19

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

9,734

by: bumpbot

17 Oct 2022, 03:09

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

16,210

by: bumpbot

01 Mar 2025, 07:24

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

11,729

by: bumpbot

22 Oct 2023, 11:38

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

9,897

by: bumpbot

14 Dec 2025, 03:20

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

17,475

by: bumpbot

22 Oct 2025, 06:45

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

25,243

by: jpu2

18 Oct 2025, 23:41

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

98

11

30,048

by: bumpbot

15 Mar 2026, 19:14

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

3,787

by: g106

23 Dec 2014, 11:33

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

8,403

by: g106

23 Dec 2014, 09:42

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

6,852

by: bumpbot

10 Jul 2024, 15:17

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

16,366

by: bumpbot

01 Jan 2024, 19:26

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

9,278

by: bumpbot

26 Sep 2025, 09:27

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

4,633

by: bumpbot

15 Feb 2023, 12:47

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

3,653

by: CCMBA

09 Jan 2015, 20:49

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

3,147

by: EMPOWERgmatRichC

27 Nov 2017, 12:09

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

5,666

by: bumpbot

12 Aug 2023, 10:04

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

1,739

by: bumpbot

28 Jan 2022, 04:24

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

24

10

5,316

by: bumpbot

14 Jan 2022, 07:11

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

3,865

by: EMPOWERgmatRichC

30 Dec 2014, 21:01

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

4,291

by: bumpbot

11 Jan 2021, 11:36

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

18,187

by: bumpbot

03 Apr 2024, 04:06

ER

Is 0 > ab?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

30 Dec 2014, 07:44

11

3,563

by: HKD1710

21 Aug 2016, 06:16

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

3,274

by: Bunuel

09 Jan 2015, 06:14

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

3,520

by: bumpbot

27 Jan 2022, 12:59

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

12,821

by: bumpbot

03 Jul 2025, 00:40

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

8,486

by: NamDuong

15 Apr 2026, 23:59

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

17,098

by: bumpbot

25 Jan 2022, 09:16

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

4,774

by: bumpbot

30 Oct 2025, 18:38

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

5,143

by: bumpbot

11 Jan 2024, 00:32

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

8,246

by: bumpbot

21 Apr 2020, 00:17

ER

Sub 505 (Easy) | Functions and Custom Characters

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

Bunuel

11 Jan 2015, 12:14

4

5

6,885

by: EgmatQuantExpert

13 Feb 2019, 22:34

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

2,913

by: Bunuel

19 Jan 2015, 03:32

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

3,663

by: bumpbot

13 Nov 2018, 20:27

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

9,764

by: bumpbot

14 Feb 2021, 11:49

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

4,882

by: bumpbot

02 Jan 2026, 02:49

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

4,600

by: bumpbot

18 Feb 2022, 12:33

ER

Is the slope of line q negative?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

PathFinder007

12 Jan 2015, 09:27

15

10

6,910

by: bumpbot

30 Jul 2023, 06:07

ER

Alison, the company CEO, wants to schedule a one-hour meeting on Monda

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Jan 2015, 11:01

2

5

2,361

by: rakshithbabu

23 Oct 2015, 06:28

ER

If X is a set of four numbers, a, b, c, and d, is the range of the num

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

12 Jan 2015, 11:07

12

9

3,140

by: bumpbot

13 Nov 2018, 08:54

ER

If b is greater than 120 percent of a, is b greater than 70? (1) b – a

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

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

Bunuel

12 Jan 2015, 11:11

5

6

4,811

by: bumpbot

09 Mar 2023, 06:35

ER

If a ≠ 0, what is the value of (a^x/a^y)^3 ?

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

Bunuel

12 Jan 2015, 11:14

4

5

3,218

by: bumpbot

05 Nov 2017, 05:50

ER

What is the number of 360-degree rotations that Tashi’s unicycle wheel

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

12 Jan 2015, 11:15

1

3

2,527

by: Bunuel

19 Jan 2015, 03:43

ER

Two line l and k intersect at a point (4, 3). Is the product of their

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

PathFinder007

12 Jan 2015, 12:19

47

11

10,313

by: bumpbot

29 Jul 2023, 23:30

ER

In the figure below, segments AB and CD represent two different ways

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

14 Jan 2015, 02:21

11

7

3,342

by: bumpbot

25 Jul 2018, 18:22