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

176

15

78,802

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,572

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

488,001

by: bb

29 Aug 2025, 13:27

ER

What is the radius of the circle above with center O?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

23 Aug 2018, 03:33

1

2

1,450

by: PKN

23 Aug 2018, 03:39

ER

Is C square of an Integer? 1) Sum of the factors of integer C is ODD

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

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

GMATinsight

27 Apr 2018, 01:46

1

3

1,658

by: shmba

22 Aug 2018, 17:55

ER

Hoses P and T simultaneously fill an empty swimming pool that has a ca

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

18 Apr 2017, 03:47

3

2

1,935

by: bumpbot

22 Aug 2018, 14:49

ER

If r and s are both positive integers, is the product of r and s even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

21 Aug 2018, 13:22

3

5

2,333

by: NandishSS

21 Aug 2018, 19:52

ER

What was the total amount of money Eben and Emily invested to start th

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

19 Aug 2018, 11:15

2

1,438

by: CounterSniper

19 Aug 2018, 11:25

ER

If x is a member of the set {44, 45, 47, 52, 55, 58}, what is the valu

Sub 505 (Easy) | Multiples and Factors +2 tags

Sub 505 (Easy) | Multiples and Factors, Number Properties, Statistics and Sets Problems hide tags

Bunuel

19 Aug 2018, 11:06

1

2

1,730

by: blueviper

19 Aug 2018, 11:16

A positive integer X is a six digit number of the form

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

amanvermagmat

08 Aug 2018, 22:46

10

6

2,386

by: shmba

17 Aug 2018, 07:48

ER

If x is a perfect square, is x also a perfect cube?

555-605 (Medium) | Exponents, Number Properties

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

Bunuel

15 Apr 2016, 01:22

10

4

5,818

by: bumpbot

14 Aug 2018, 07:32

ER

If x^2-xy<0, what is the number of possible integer values of x?

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

chetan2u

14 Aug 2018, 05:12

3

2

1,661

by: PKN

14 Aug 2018, 05:38

What is the value of p + q + r

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Poor Quality hide tags

gsingh0711

09 Aug 2018, 08:31

17

14

9,723

by: PKN

09 Aug 2018, 22:41

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Is ab+c an odd integer, if a, b and c are positive integers? (1) c is

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

chetan2u

10 Jul 2018, 20:32

6

5

1,930

by: KSBGC

07 Aug 2018, 14:48

Triangle ABC is equilateral. A point D lies on side BC and AD is

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

amanvermagmat

06 Aug 2018, 11:27

2

1

1,850

by: PKN

06 Aug 2018, 12:05

ER

Is xy > 0? (1) x = −3 (2) y = 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

13 Apr 2017, 07:54

2

4

2,542

by: bumpbot

05 Aug 2018, 16:41

ER

If ABC is a right-angled triangle, what is the measure

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

chetan2u

30 Jul 2018, 19:26

1

2

1,395

by: CounterSniper

31 Jul 2018, 03:17

ER

A certain hospital has 400 patients, who are classified in one of two

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

30 Jul 2018, 06:04

4

3,034

by: Nikhil

30 Jul 2018, 06:20

ER

If O is the center of the circle and radius of the circle is 5, what i

555-605 (Medium) | Algebra, Geometry

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

chetan2u

29 Oct 2019, 00:31

2

1

1,012

by: PKN

28 Jul 2018, 00:10

ER

Is it possible to form a triangle with its three sides as 'a', 'b' and

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

amanvermagmat

21 Jul 2018, 21:46

5

12

1,522

by: aserghe1

27 Jul 2018, 16:43

ER

What is the value of the two-digit integer a?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

26 Jul 2018, 01:16

5

2,030

by: ShardulPendharkar

26 Jul 2018, 09:10

ER

If m is a positive integer, is m + 4 even?

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

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

Bunuel

26 Jul 2018, 01:37

1

3

2,068

by: thefibonacci

26 Jul 2018, 03:59

ER

If Carl is 3 times as old as Bea, how old is Bea? (1) In nine years,

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

25 Jul 2018, 05:18

1

4

3,456

by: sudarshan22

25 Jul 2018, 11:14

All packets of cookies have same price, and all pastries also have the

505-555 (Easy) | Algebra, Word Problems

505-555 (Easy) | Algebra, Word Problems hide tags

amanvermagmat

18 Jul 2018, 00:19

1

1,118

by: Princ

24 Jul 2018, 09:47

ER

What is the value of x+y, if x and y are real numbers? (1) x-y = 4

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

23 Jul 2018, 21:13

1

1,714

by: Nikhil

23 Jul 2018, 22:17

If p < x < q and r > y > s, then is y > q? (1) x < y (2) q < r

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

amanvermagmat

21 Jul 2018, 10:50

1

2

2,401

by: vaibhav1221

22 Jul 2018, 04:35

Is the positive integer Y greater than 20? (1) Y divided by 7 gives a

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

amanvermagmat

21 Jul 2018, 11:09

3

1

1,681

by: Akash720

21 Jul 2018, 11:59

Pipe X, pipe Y and pipe Z are all inlet pipes which always operate at

505-555 (Easy) | Work and Rate Problems

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

amanvermagmat

19 Jul 2018, 11:28

3

1

1,957

by: gvij2017

19 Jul 2018, 18:15

What is the value of x? (1) x = -1, 1 (2) x = 1, 2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

neadhs

10 Jun 2018, 00:15

1

3

1,562

by: push12345

19 Jul 2018, 04:27

ER

What is the average (arithmetic mean) of 2x and 6y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Jan 2018, 08:07

2

1,937

by: AkshdeepS

17 Jul 2018, 00:17

Kim divided her complete wealth among her three sons - A, B, C in the

505-555 (Easy) | Fractions and Ratios

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

amanvermagmat

16 Jul 2018, 11:27

1

1,226

by: u1983

16 Jul 2018, 12:28

ER

If a, b and c are integers greater than 2, what is the value of a + b

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Jul 2018, 21:15

3

2

1,572

by: KSBGC

16 Jul 2018, 02:16

ER

Lisa bought $50 worth of gas for her truck. How far can Lisa travel in

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

15 Jul 2018, 21:21

2

1,483

by: KSBGC

16 Jul 2018, 02:05

ER

If x and n are integers such that x = 1^2 + 2^2 + 3^2 + . . . + n^2, w

805+ (Hard) | Exponents +2 tags

805+ (Hard) | Exponents, Number Properties, Remainders hide tags

Bunuel

20 Jan 2017, 07:37

18

7

4,058

by: thefibonacci

15 Jul 2018, 02:51

ER

Is 2k > 13? (1) 6 < k - 0.6 < 7 (2) k + 0.8 rounded to the nearest in

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Apr 2018, 02:05

2

4

1,527

by: stne

12 Jul 2018, 05:04

ER

What is the value of x + y? (1) x + 2 = 5 - y (2) (x + y)^2 = 9

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

10 Jul 2018, 22:05

2

3

1,305

by: rever08

11 Jul 2018, 20:31

ER

Is a > b? (1) a = 1 - c (2) b = 1 + c

555-605 (Medium) | Algebra, Inequalities

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

Bunuel

04 Apr 2017, 00:32

1

3

1,915

by: Arro44

10 Jul 2018, 08:43

A quadrilateral PQRS is inscribed in a circle. Is PQRS a square?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

amanvermagmat

09 Jul 2018, 21:48

1

2

3,501

by: yogithaan

10 Jul 2018, 03:48

ER

What is the volume, in cubic meters, of the water in a certain rectang

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

09 Jul 2018, 00:37

2

1,553

by: GyMrAT

09 Jul 2018, 09:58

Each of the three people X, Y and Z were given an identical task to

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

amanvermagmat

05 Jul 2018, 21:31

2

1,290

by: AdityaHongunti

06 Jul 2018, 10:53

ER

AB and CD are both diameters of a circle with centre O. So A, B, C, D

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

amanvermagmat

04 Jul 2018, 23:20

2

2,514

by: PKN

05 Jul 2018, 01:04

ER

If the least common multiple of integers x and y is 840, what is the

555-605 (Medium) | Multiples and Factors

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

Bunuel

22 Dec 2016, 02:33

4

5

2,816

by: bumpbot

03 Jul 2018, 22:26

If P and Q are two distinct positive integers, what is the remainder

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

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

amanvermagmat

02 Jul 2018, 11:15

4

7

3,235

by: olito

03 Jul 2018, 19:11

ER

Is area of the triangle ABC greater than 24? 1) Two of the Sides of t

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

03 Jul 2018, 06:50

1

1,377

by: PKN

03 Jul 2018, 08:54

ER

If a and m are positive integers, then what is the remainder of a^m/3?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

29 Jun 2018, 04:38

2

4

1,504

by: D3N0

29 Jun 2018, 08:47

ER

Is |r|*s = |s|*r?

555-605 (Medium) | Absolute Values, Inequalities

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

chetan2u

28 Jun 2018, 21:17

5

3

2,718

by: GyMrAT

28 Jun 2018, 22:02

Two parallel lines L1 and L2 lie in a plane at a perpendicular distanc

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

amanvermagmat

28 Jun 2018, 11:12

1

1,780

by: venky90

28 Jun 2018, 12:26

A triangle PQR has angle PQR as 105 degrees. What is the area of

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

amanvermagmat

25 Jun 2018, 10:53

6

5

2,006

by: cpanara

26 Jun 2018, 13:43

PQR is an isosceles triangle. What is the measure of exterior angle at

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

amanvermagmat

25 Jun 2018, 11:14

2

1

1,601

by: ReadyPlayerOne

25 Jun 2018, 12:23

ER

Last year, Hanna's yearly income was 20 percent less than Janet's, but

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

GMATBusters

22 Jun 2018, 09:07

1

1,195

by: Gladiator59

22 Jun 2018, 10:10

ER

If x and y are positive integers, is x^2 + y^2 odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

19 Jun 2018, 23:43

1

3

2,362

by: baru

21 Jun 2018, 05:06

If a > 0, what is the value a^xa^y ? (1) x = -y (2) a = -2 and x - y=6

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Poor Quality hide tags

AkshdeepS

10 Nov 2018, 06:27

2

1,024

by: gmatzpractice

20 Jun 2018, 13:56

ER

What is the value of 16x^2+4y^2+16xy? (1) 2x + y = 4 (2) xy = 2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

17 Jun 2018, 06:32

1

2

1,506

by: pushpitkc

17 Jun 2018, 07:45