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

79,764

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

858

24

188,983

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

488,684

by: bb

29 Aug 2025, 13:27

ER

If a, b and c denote the units, tenths and hundredths digits in the de

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

10 Jun 2020, 03:40

8

3

2,337

by: bangmachiv

09 Feb 2021, 03:58

ER

The figure shows a regular hexagon that has sides of length n and a sq

555-605 (Medium) | Algebra, Geometry

555-605 (Medium) | Algebra, Geometry hide tags

AndrewN

22 Feb 2021, 14:00

8

2

2,729

by: AndrewN

23 Feb 2021, 10:48

ER

If a < b, is a^2 > ab? (1) ab < 0 (2) a + b = 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

19 Mar 2021, 01:30

8

6

2,699

by: Bunuel

22 Mar 2021, 00:15

If |x|>1, is x^(1/a)>x^(1/b)? 1) a/b>1 2) a+b<0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

TheUltimateWinner

13 Mar 2019, 21:20

8

5

1,937

by: bumpbot

28 Mar 2021, 21:32

ER

If A is an integer, is the square root of A an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

23 Jun 2016, 02:03

8

4

3,140

by: bumpbot

30 Mar 2021, 09:00

ER

If a, b, and c are positive integers, is it true that ab is divisible

605-655 (Medium) | Multiples and Factors

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

Bunuel

30 Mar 2021, 01:30

8

7

3,290

by: Bunuel

31 Mar 2021, 01:15

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

4,627

by: ramlala

04 Apr 2021, 06:09

A rectangle is rotated around one of its sides

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

SherzodAzamov

10 Jan 2021, 21:35

8

4

3,098

by: hellothere88

19 Apr 2021, 08:51

ER

What is the remainder when positive integer k is divided by 12?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

05 Oct 2019, 02:18

8

4

4,072

by: Harshjha001

27 Apr 2021, 12:12

ER

A rectangle with dimensions 75 inches by 100 inches is divided into 20

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

16 May 2019, 21:28

8

3

2,901

by: ManyataM

15 May 2021, 13:57

ER

The largest possible cylinder is enclosed in a cube. What is the large

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

17 Sep 2018, 22:16

8

7

2,664

by: bumpbot

16 May 2021, 22:02

ER

If t is an integer, is 3^t a factor of 21!? (1) t is the product of t

605-655 (Medium) | Exponents +2 tags

605-655 (Medium) | Exponents, Multiples and Factors, Number Properties hide tags

Bunuel

03 Jun 2021, 01:30

8

6

2,104

by: Bunuel

04 Jun 2021, 01:15

ER

What is the value of n? 1). The tens’ digit of 11^n is 4 2). The h

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

PriyankaPalit7

20 Mar 2019, 09:31

8

5

2,993

by: bumpbot

18 Jun 2021, 07:11

ER

If n can be expressed as p 2q 3 , where p and q are distinct positive

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

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

Bunuel

06 Aug 2017, 00:59

8

2

3,696

by: PSP92

30 Jun 2021, 06:01

ER

There are 120 saplings to be planted in an orchard. Ben and Sue workin

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

Bunuel

20 May 2016, 00:18

8

3

6,037

by: bumpbot

02 Jul 2021, 07:28

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

07 Jul 2021, 01:30

8

7

2,427

by: TANYA27

08 Jul 2021, 19:07

ER

What is the perimeter of the square BEDF? (1) The area of the shaded

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

05 Oct 2019, 02:11

8

5

2,387

by: bumpbot

11 Jul 2021, 12:54

ER

The lines m, l, and n intersect at point Q. What are the mea

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

fozzzy

15 Jun 2013, 05:44

8

6

4,842

by: bumpbot

23 Jul 2021, 09:00

ER

What is the value of x^2 – y^2 ? (1) x^2 + y^2 = 2xy (2) x = |y|

605-655 (Medium) | Absolute Values, Algebra

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

Bunuel

02 Oct 2017, 00:47

8

4

4,490

by: bumpbot

23 Jul 2021, 09:17

ER

Is the range of the set of numbers {j, k, l, m,n, p} greater than 5?

555-605 (Medium) | Statistics and Sets Problems

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

HKD1710

15 Jan 2017, 08:02

8

2

2,484

by: bumpbot

26 Jul 2021, 22:32

ER

What is the radius of semicircle S, shown above? (1) The perimeter of

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

03 Aug 2021, 01:30

8

7

2,596

by: errorlogger

03 Aug 2021, 13:54

ER

Is quadrilateral ABCD a square? (1) ABCD is a rectangle whose diagona

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

26 May 2021, 04:30

8

4

4,035

by: CrackverbalGMAT

21 Aug 2021, 18:39

ER

If p and n are positive integers greater than 2, is p^n − p^{n−2} divi

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Russ19

03 Sep 2021, 04:51

8

2

1,748

by: TestPrepUnlimited

05 Sep 2021, 07:05

ER

In 1984 a certain union had a total of 15,600 members. Was the percent

Sub 505 (Easy) | Arithmetic

Sub 505 (Easy) | Arithmetic hide tags

anairamitch1804

16 Feb 2017, 18:48

8

5

6,815

by: bumpbot

13 Oct 2021, 05:09

ER

If x is a positive integer, is x^4 divisible by 16?

555-605 (Medium) | Multiples and Factors

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

sarphant123

26 Jul 2020, 11:23

8

9

4,122

by: bumpbot

20 Oct 2021, 07:36

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

3,834

by: Bunuel

09 Nov 2021, 03:41

ER

At how many points do the two graphs named as "First Graph" and "Secon

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

GMATinsight

13 May 2017, 02:26

8

3

2,671

by: bumpbot

27 Nov 2021, 20:29

ER

If, on a coordinate plane, point A has the coordinates

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Bull78

25 Jul 2010, 12:53

8

11

5,271

by: abhishekmayank

14 Dec 2021, 00:14

ER

Is x y = y x, for all real values of x and y?

555-605 (Medium) | Functions and Custom Characters

555-605 (Medium) | Functions and Custom Characters hide tags

jusjmkol740

07 Oct 2016, 07:35

8

12

7,777

by: bumpbot

31 Dec 2021, 11:02

ER

Is ABC a right triangle? AB = 5; AC = 4. (1) BC = 3 (2) AC = CD

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

05 Nov 2017, 02:02

8

6

3,578

by: bumpbot

01 Jan 2022, 07:05

ER

If AB is a diameter of the circle shown, what is the area of the circl

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

22 Aug 2019, 04:16

8

6

3,883

by: bumpbot

09 Jan 2022, 20:10

ER

If a, b, c, and d are positive, is ac + bd > bc + ad?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

audiogal101

22 Oct 2013, 10:43

8

7

11,273

by: bumpbot

13 Jan 2022, 06:58

ER

If a square with 20 as one side’s length and decreases to a and b show

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

MathRevolution

21 Mar 2016, 18:29

8

7

2,590

by: bumpbot

13 Jan 2022, 07:23

ER

2ax + 5y = 17 4x + 6by = 11 In the x-y plane, the above two straight

605-655 (Medium) | Coordinate Plane, Geometry

605-655 (Medium) | Coordinate Plane, Geometry hide tags

mangamma

13 Jun 2019, 00:24

8

4

3,699

by: bumpbot

13 Jan 2022, 11:16

ER

If O is a center of a circle as above figure, what is the area of the

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

MathRevolution

18 May 2016, 16:13

8

4

5,258

by: bumpbot

14 Jan 2022, 02:05

ER

In the figure, ABCD is a trapezoid with BC//AD, AB = CE, BE//CG, and a

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

mikemcgarry

15 Jun 2016, 10:13

8

6

4,293

by: bumpbot

14 Jan 2022, 06:55

ER

Is -x < 2y ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

devilmirror

30 Jan 2007, 21:25

8

13

6,444

by: bumpbot

17 Jan 2022, 15:53

If N is a 3-digit integer, what is the value of N?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Amrita2405

12 Apr 2019, 23:37

8

3,406

by: bumpbot

21 Jan 2022, 07:02

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

3,516

by: bumpbot

27 Jan 2022, 12:59

ER

Is p + q > 0? (1) p/(p + q) > 0 (2) q/(p + q) > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

10 Dec 2018, 03:55

8

7

2,708

by: bumpbot

29 Jan 2022, 03:01

ER

If w and c are integers is w > 0 ? (1) w + c > 50 (2)

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

ajit257

16 Dec 2010, 05:28

8

6

14,091

by: bumpbot

29 Jan 2022, 14:58

ER

Is v^2 an even integer? (1) v is an even integer (2) √v is an even

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

04 Feb 2022, 03:23

8

7

2,473

by: TarunKumar1234

06 Feb 2022, 11:25

ER

What is the value of z? Image (NOTE: Figure not drawn to scale.) (1)

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

02 Feb 2022, 04:30

8

6

3,291

by: stne

16 Feb 2022, 07:58

ER

In quadrilateral LMNP, MN is parallel to PL, what is the measure of an

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

05 Nov 2019, 06:06

8

4,407

by: Sohinik

18 Feb 2022, 01:31

ER

In a class with 12 children, q of the children are girls.

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

ksharma12

20 Apr 2010, 17:40

8

6

5,036

by: bumpbot

18 Feb 2022, 09:54

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

4,594

by: bumpbot

18 Feb 2022, 12:33

ER

If it takes Patrick 4 hours to paint a room, how long did it take Patr

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

16 Jan 2017, 09:36

8

4

3,210

by: bumpbot

23 Feb 2022, 04:22

ER

Is x/y > 0? (1) x/(x + y) > 0 (2) y/(x + y) > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

29 Jan 2020, 01:51

8

6

4,450

by: kungfury42

24 Feb 2022, 11:48

ER

If R is an integer, is R evenly divisible by 3?

505-555 (Easy) | Multiples and Factors

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

Bunuel

03 Apr 2015, 04:50

8

16

9,877

by: bumpbot

24 Feb 2022, 14:03

ER

In triangle ABC, angle A and angle B are 30 and 60 degrees, respective

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

31 Dec 2020, 01:32

8

3

3,894

by: bumpbot

10 Mar 2022, 21:29