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

79,469

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

188,939

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

488,616

by: bb

29 Aug 2025, 13:27

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

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

1,936

by: bumpbot

28 Mar 2021, 21:32

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

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

2,726

by: AndrewN

23 Feb 2021, 10:48

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

2,334

by: bangmachiv

09 Feb 2021, 03:58

ER

Does positive integer a equal 5? (1) a is a not factor of 6006.

555-605 (Medium) | Multiples and Factors

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

Bunuel

06 May 2019, 01:42

8

4

3,170

by: bumpbot

01 Feb 2021, 12:02

ER

Is x > = y ?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

registerincog

02 Aug 2014, 11:26

8

2

3,081

by: bumpbot

20 Jan 2021, 20:04

ER

What is a% of b?

555-605 (Medium) | Fractions and Ratios, Percent and Interest Problems

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

EMPOWERgmatRichC

07 Oct 2019, 19:59

8

5

3,254

by: MHIKER

08 Jan 2021, 09:17

ER

Dodgers stadium, which is rectangular in shape, currently has one par

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

20 Nov 2020, 01:15

8

5

2,179

by: Pallavi2020

21 Nov 2020, 11:22

ER

If x is a positive integer, is x^2 + 1 an odd number?

505-555 (Easy) | Exponents, Number Properties

505-555 (Easy) | Exponents, Number Properties hide tags

Bunuel

07 Nov 2020, 10:30

8

7

3,054

by: GCMEMBER

13 Nov 2020, 00:25

ER

Is the product of two numbers x and y a prime number?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

04 Nov 2020, 05:30

8

2,164

by: aamani02

07 Nov 2020, 21:18

ER

If P, Q, R, and S are all integers, is product PQRS even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

17 Feb 2016, 03:13

8

15

9,186

by: Bunuel

01 Nov 2020, 01:46

ER

Each boy does exactly 2 units of work per day and each girl does

555-605 (Medium) | Arithmetic, Work and Rate Problems

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

amanvermagmat

09 Jun 2018, 11:22

8

3

3,018

by: bumpbot

31 Oct 2020, 20:08

ER

Is x = y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

peacewarriors

08 Jul 2014, 02:03

8

7

2,957

by: bumpbot

29 Oct 2020, 02:43

ER

n is the product of least and greatest 6 consecutive integers. What is

505-555 (Easy) | Number Properties, Statistics and Sets Problems

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

anuragsingal

05 Jan 2015, 04:15

8

11

9,305

by: Tonkotsu

19 Oct 2020, 19:40

ER

What are the values of 3 integers a,b and c

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

AdityaHongunti

01 Feb 2023, 13:48

8

5

5,207

by: chetan2u

29 Sep 2020, 09:23

ER

If n is a positive integer, is (n+2)(n+3) divisible by 8?

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

DisciplinedPrep

25 Sep 2020, 23:29

8

3

3,127

by: Gauravji21

26 Sep 2020, 08:00

ER

If C=P(1+r/100)^n where C is the capital, P is t

605-655 (Medium) | Percent and Interest Problems

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

MathRevolution

23 Oct 2017, 02:16

8

3

2,930

by: bumpbot

14 Sep 2020, 21:54

ER

If φ is a function, does aφ 1 = 1 for all a? (1) 1φ a = 1 for all a. (

605-655 (Medium) | Functions and Custom Characters

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

Sajjad1994

11 Jul 2019, 05:09

8

4

3,779

by: TestPrepUnlimited

13 Sep 2020, 16:06

ER

What is the value of x^3 + y^3 ? (1) x + y = 7 (2) x^2 + y^2 = 25

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

06 Sep 2019, 10:55

8

2

2,044

by: CrackverbalGMAT

05 Sep 2020, 04:26

ER

What is the value of a – b?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

AbdurRakib

05 Jun 2016, 14:02

8

5

4,266

by: bumpbot

28 Aug 2020, 02:06

ER

What is the slope of line l that does not pass through the origin?

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

TheUltimateWinner

02 Aug 2020, 09:24

8

7

4,707

by: IanStewart

10 Aug 2020, 09:54

ER

The nth term of a sequence of distinct positive integers is determined

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Bunuel

18 Mar 2020, 09:19

8

3

3,939

by: catinabox

09 Aug 2020, 11:43

ER

In the diagram above, line BC touches the circle at point C, and the

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

17 Jul 2016, 11:27

8

6

3,721

by: agar123

05 Aug 2020, 08:59

ER

A company's sales team has 60% males and rest females.

555-605 (Medium) | Arithmetic, Percent and Interest Problems

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

amanvermagmat

11 Aug 2018, 22:59

8

2

2,917

by: bumpbot

27 Jul 2020, 16:06

ER

Between a cube and a right circular cylinder, does the cube have a

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

23 Jul 2017, 23:26

8

4

2,321

by: bumpbot

21 Jul 2020, 04:42

ER

Compound P contains just three chemicals — X, Y, and Z. The three chem

505-555 (Easy) | Fractions and Ratios, Mixture Problems

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

Bunuel

16 Feb 2016, 00:55

8

4

5,038

by: bumpbot

18 Jul 2020, 08:09

ER

If k is an integer, is k^2 < 100?

605-655 (Medium) | Inequalities, Number Properties

605-655 (Medium) | Inequalities, Number Properties hide tags

GMATBusters

01 May 2020, 06:19

8

7

2,932

by: sampad

12 Jul 2020, 05:29

ER

If n is a positive integer with k digits. What is the value of n?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

19 Dec 2016, 04:55

8

4

3,037

by: daniformic

07 Jul 2020, 15:32

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Jun 2015, 03:57

8

5

5,496

by: bumpbot

05 Jul 2020, 16:56

ER

If x is a positive integer, does 6 divide evenly into x?

505-555 (Easy) | Multiples and Factors

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

Bunuel

19 Apr 2016, 03:11

8

6

3,958

by: TestPrepUnlimited

28 Jun 2020, 14:05

ER

Q is a set of integers If Q contains more than 2 numbers, are all the

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

22 Jun 2020, 02:45

8

5

2,326

by: sambitspm

26 Jun 2020, 21:13

Integer y divides into integer x 6 times with some remainder, r

655-705 (Hard) | Multiples and Factors

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

Abhi077

09 Nov 2018, 03:54

8

2

2,639

by: Papist

24 Jun 2020, 11:45

ER

In the xy plane, is the slope of the line segment QR positive? (1) T

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

06 May 2020, 03:05

8

3

3,289

by: AabhishekGrover

15 Jun 2020, 03:12

What is the value of X?

555-605 (Medium) | Algebra, Arithmetic

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

fitzpratik

18 Jan 2019, 08:59

8

5

2,462

by: bumpbot

09 Jun 2020, 16:06

ER

Out of the 100 kids that went to the party, how many girls danced ther

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

02 Jun 2020, 02:32

8

7

2,469

by: sambitspm

03 Jun 2020, 02:18

ER

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

705-805 (Hard) | Algebra, Exponents

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

chetan2u

01 Jun 2020, 01:03

8

4

3,059

by: chetan2u

02 Jun 2020, 21:56

ER

If an employee of Company A is selected at random for a

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Chembeti

29 Feb 2012, 10:11

8

4

6,063

by: karan12345

02 Jun 2020, 02:20

ER

If p, q, r are even numbers such that 2 < p < q < r what is the value

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

10 May 2020, 21:56

8

12

2,882

by: monikakumar

11 May 2020, 21:32

ER

Is a < 2^(1/2) (1) Point (a,0) is inside the circle x^2 + y^2 =3

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

08 May 2020, 03:30

8

4

2,565

by: Kinshook

09 May 2020, 10:10

ER

Two polygons A and B have number of sides as a and b respectively, wha

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

06 May 2020, 22:39

8

4

4,393

by: poojakhanduja3017

07 May 2020, 15:13

ER

In a car race between A and B over a distance of 60 miles

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

chetan2u

20 Apr 2016, 22:47

8

5

3,400

by: bumpbot

01 May 2020, 23:27

ER

Is t=|r−s|?

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

29 Apr 2016, 02:45

8

6

3,782

by: AntonioGalindo

29 Apr 2020, 15:15

ER

In the diagram below, triangle ABC is right-angled at B. What is the

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Jul 2017, 23:31

8

3,827

by: ravigupta2912

10 Apr 2020, 09:57

ER

If x and y are positive integers, is x even?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

02 Apr 2015, 04:19

8

9

4,111

by: TheNightKing

07 Apr 2020, 19:17

ER

Let an infinite series of positive integers be termed "pure" if it con

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

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

Bunuel

16 Mar 2020, 01:52

8

7

2,458

by: chaitralirr

16 Mar 2020, 23:22

ER

What is the area of triangle BDC?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

GMATBusters

07 Dec 2019, 19:22

8

17

5,075

by: ayushkumar22941

08 Mar 2020, 20:49

Two tanks T1 and T2 have a capacity of 1500 litres and 2000 litres res

555-605 (Medium) | Work and Rate Problems

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

amanvermagmat

05 Aug 2018, 05:03

8

4

2,846

by: bumpbot

08 Mar 2020, 09:05

ER

Is m > 0 ? (1) (m|n| - |mn|)/|m+n| < 0 (2) |m + n| > 0

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

J2S2019

26 Feb 2020, 03:22

8

4

2,647

by: MathRevolution

29 Feb 2020, 19:32

ER

Every member of Megs immediate family agrees to share equally the cos

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

13 May 2026, 10:51

8

10

2,240

by: lacktutor

16 Feb 2020, 14:26