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

79,251

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

188,848

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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

488,474

by: bb

29 Aug 2025, 13:27

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Is the positive integer n divisible by 8? (1) n is divisible by three

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

Bunuel

15 Jul 2018, 21:32

2

12

5,630

by: Bunuel

16 Nov 2021, 09:27

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Are positive integers m and n both multiples of 3?

555-605 (Medium) | Multiples and Factors

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

Bunuel

22 Nov 2018, 02:34

6

5

3,868

by: Bunuel

16 Nov 2021, 09:25

ER

If a and b are positive integers, is a*b a prime number?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

06 Dec 2018, 05:40

1

4

3,299

by: Bunuel

16 Nov 2021, 09:23

ER

Is integer n < 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

22 Apr 2016, 04:34

2

2,348

by: BrentGMATPrepNow

16 Nov 2021, 07:24

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What is the median of the list above?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

20 Aug 2018, 04:30

3

8

5,332

by: Bunuel

16 Nov 2021, 03:25

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If x, y, and z are positive integers, what is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

21 May 2018, 00:14

16

6

5,474

by: Bunuel

16 Nov 2021, 02:32

ER

Square G has sides of length 4 inches. Is the area of Square H exactly

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

15 Nov 2021, 02:30

3

2

2,266

by: BrentGMATPrepNow

15 Nov 2021, 09:05

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If O represents the center of a circular clock and the point of the cl

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

23 Jun 2015, 23:08

25

11

8,246

by: mgan

15 Nov 2021, 04:51

ER

HOT Competition (Instagram) 31 Aug/11:00AM: On a certain farm, the rat

655-705 (Hard) | Fractions and Ratios

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

Bunuel

31 Aug 2020, 11:00

17

14

5,858

by: Bunuel

15 Nov 2021, 03:43

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If a, b, x, and y are all positive, is a/b > x/y ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Apr 2017, 03:34

18

8

4,009

by: GMATCoachBen

13 Nov 2021, 20:33

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If a 0, x/y = -1/a, and y/z = b/3, is x/z > 1/2?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

10 Nov 2021, 10:00

1

2

1,673

by: JerryAtDreamScore

12 Nov 2021, 11:00

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If x and y are positive integers, then what is the value of (1)^x + (

805+ (Hard) | Exponents +2 tags

805+ (Hard) | Exponents, Multiples and Factors, Number Properties hide tags

Bunuel

05 Jul 2018, 05:47

25

7

4,349

by: Bunuel

12 Nov 2021, 09:03

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Is positive integer x divisible by 5? (1) The sum of the digits of x

555-605 (Medium) | Multiples and Factors

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

Bunuel

09 Nov 2020, 09:45

3

3,072

by: Bunuel

12 Nov 2021, 08:24

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The first-year MBA class at XYZ University is composed of 60 male stud

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

10 Nov 2021, 02:30

2

1,774

by: GMATCoachBen

10 Nov 2021, 20:39

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If n is a positive integer, is n^2 - n divisible by 12?

655-705 (Hard) | Multiples and Factors

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

Bunuel

05 Feb 2021, 08:45

5

3

4,377

by: Bunuel

10 Nov 2021, 03:57

ER

Is x = 0? (1) xy = x (2) x + y = y

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

16 Feb 2021, 05:08

2

4

4,153

by: Bunuel

10 Nov 2021, 03:13

ER

If positive integer n is less than or equal to 20, what is the value

555-605 (Medium) | Multiples and Factors, Number Properties

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

Bunuel

10 Nov 2021, 02:30

1

1,452

by: asishron29181

10 Nov 2021, 03:10

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Is x = 0? (1) xy = x (2) x + y = x

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

26 Feb 2021, 04:00

5

3

2,215

by: Bunuel

10 Nov 2021, 02:23

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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

4,612

by: Bunuel

09 Nov 2021, 09:31

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If x and y are positive integers, is x/y a terminating decimal?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

30 Jan 2018, 07:19

33

8

8,526

by: Bunuel

09 Nov 2021, 08:55

ER

What is the value of a positive integer x? (1) x is three times the

805+ (Hard) | Algebra, Number Properties

805+ (Hard) | Algebra, Number Properties hide tags

Bunuel

10 Dec 2018, 02:32

28

8

4,973

by: Bunuel

09 Nov 2021, 04:29

ER

If x, y and z are positive numbers, is x/y > (x + z)/(y + z) ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

26 Nov 2018, 01:25

8

6

3,824

by: Bunuel

09 Nov 2021, 03:41

ER

A spaceship in orbit rotates around the planet Pluto. How many full

Sub 505 (Easy) | Distance and Speed Problems, Geometry

Sub 505 (Easy) | Distance and Speed Problems, Geometry hide tags

Bunuel

23 Jun 2016, 02:05

6

4,151

by: CrackverbalGMAT

09 Nov 2021, 03:30

ER

In right triangle JKL, shown above, what is the length of KL ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

08 Nov 2021, 02:30

4

3

2,945

by: amxavier09

08 Nov 2021, 21:05

ER

If f is a positive integer, is (f + 1)^(1/2) an integer?

555-605 (Medium) | Algebra, Number Properties

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

Bunuel

08 Nov 2021, 02:30

3

2

1,367

by: asishron29181

08 Nov 2021, 20:15

ER

Is a two digit positive integer mn, where x m is the tens digit and n

555-605 (Medium) | Multiples and Factors, Number Properties

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

Bunuel

03 Dec 2018, 21:19

9

10

4,423

by: Bunuel

08 Nov 2021, 09:46

ER

If x 0, what is the value of x?

655-705 (Hard) | Absolute Values, Exponents

655-705 (Hard) | Absolute Values, Exponents hide tags

Bunuel

10 Oct 2017, 01:06

12

9

5,740

by: Bunuel

08 Nov 2021, 08:13

ER

If both m and n are positive integers, is m a multiple of n?

555-605 (Medium) | Multiples and Factors

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

Bunuel

18 Jul 2018, 02:46

17

5

4,308

by: Bunuel

08 Nov 2021, 06:13

ER

3/4 of the employees at a global company are female. If all the employ

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

08 Nov 2021, 01:33

2

1,631

by: globaldesi

08 Nov 2021, 04:16

ER

The integers x and y are positive. Is the sqrt (x^2 +7xy) an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

03 Nov 2021, 03:00

1

1,398

by: errorlogger

06 Nov 2021, 10:11

ER

What is the value of x? (1) x^2 - 6 = - x (2) x^2 = 4

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

03 Nov 2021, 03:30

2

1

1,196

by: errorlogger

06 Nov 2021, 09:59

ER

How many patients can a group of dermatologists diagnose in one day?

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

20 Jul 2016, 11:37

7

6

4,162

by: dadie

06 Nov 2021, 07:59

ER

In the above diagram, a square is inscribed in a circle, which is insc

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

26 Aug 2015, 00:48

26

13

5,473

by: Abdeviliiers

06 Nov 2021, 07:35

ER

Are all sides of quadrilateral ABCD equal?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

23 Apr 2021, 01:30

5

12

4,662

by: andrenoble

06 Nov 2021, 05:51

ER

Does z = y(x+1)/x^2 ? (1) x^2z = y (2) y/x = 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

06 Oct 2021, 01:30

3

5

2,759

by: chetan2u

06 Nov 2021, 05:30

ER

If a and b are integers and a^b = 16, |a - b| = ? (1) b ≠ 1 (2) a > 0

605-655 (Medium) | Absolute Values +2 tags

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

Bunuel

24 Sep 2021, 01:30

11

5

2,924

by: JerryAtDreamScore

05 Nov 2021, 09:47

ER

If x + 3y − 3 = 2y − 3x, what is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

04 Nov 2021, 01:30

1

1,388

by: asishron29181

04 Nov 2021, 09:07

ER

If K is the area of a rectangle, then what is K?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

04 Nov 2021, 01:30

2

1,240

by: asishron29181

04 Nov 2021, 09:00

ER

If n and p are positive integers, what is the ratio of n to p?

705-805 (Hard) | Algebra, Fractions and Ratios

705-805 (Hard) | Algebra, Fractions and Ratios hide tags

Bunuel

25 Jan 2018, 23:34

11

9

3,312

by: bumpbot

03 Nov 2021, 20:47

ER

N is the number of sides of a polygon. What is N?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

03 Nov 2021, 01:30

4

2

1,684

by: Victor19

03 Nov 2021, 11:29

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If a, b, and c are all integers, is ab + bc + ca + a^2 odd?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

22 Jul 2021, 01:31

7

6

3,777

by: Bunuel

03 Nov 2021, 07:14

ER

Mark has fewer than 9 coins. Each coin is either a quarter (worth $0.2

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

08 Oct 2021, 01:30

3

4

5,699

by: Bunuel

03 Nov 2021, 07:11

ER

In each of five taste tests, each of 51 participants chose either Bran

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

21 Sep 2021, 01:30

3

2

2,160

by: Bunuel

03 Nov 2021, 06:51

ER

What is the value of (x - 2)(2 + y) ? (1) xy = 6 (2) x + y = 5

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Jan 2020, 05:23

3

1,836

by: Bunuel

03 Nov 2021, 06:49

ER

The diagram above shows a rectangular garden, bordered by a walkway co

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

29 Sep 2021, 01:00

2

2,691

by: Bunuel

03 Nov 2021, 06:48

ER

In the figure shown, all the lines pass through point A in the center.

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Bunuel

30 Sep 2021, 01:30

4

2

1,511

by: Bunuel

03 Nov 2021, 06:47

ER

John, Michael and Sameer paddled a boat for about 1500 feet. Who paddl

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

06 Oct 2021, 01:30

3

2

2,014

by: Bunuel

03 Nov 2021, 06:45

ER

Is x > 2 + 2y ? (1) x^2 - 3xy + 2y^2 = 0 (2) y < -2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

25 May 2020, 11:23

9

8

4,078

by: Bunuel

03 Nov 2021, 06:44

ER

Jade's compensation consists of a salary plus a commission that is eq

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

30 Jun 2021, 09:00

2

1,551

by: Bunuel

03 Nov 2021, 06:44

ER

Gold gym has few members in two batches, A and B. The gym can divide

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 Apr 2021, 02:00

2

1,684

by: Bunuel

03 Nov 2021, 06:44