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

79,168

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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

188,791

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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

488,383

by: bb

29 Aug 2025, 13:27

ER

Is a + b > 0 ?

555-605 (Medium) | Absolute Values +2 tags

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

shyind

11 Nov 2015, 01:57

7

3,973

by: bumpbot

23 Dec 2023, 01:48

ER

On Thursday afternoon, two machines, J and R, ran continuously at unif

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

Bunuel

18 Apr 2017, 03:49

10

9

3,973

by: suryan1991

11 Nov 2020, 11:32

ER

x = 0.57y9. If y denotes the thousandth digit in the decimal represent

Sub 505 (Easy) | Fractions and Ratios, Number Properties

Sub 505 (Easy) | Fractions and Ratios, Number Properties hide tags

Bunuel

10 Oct 2019, 23:08

3

6

3,972

by: Bunuel

13 Apr 2023, 00:07

ER

Each term of the sequence S, starting from the 2nd term is 1 less

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Abhi077

10 Dec 2020, 07:38

15

5

3,971

by: bumpbot

18 Dec 2023, 10:46

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Is m +n^3 odd?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

GMATBusters

04 Jan 2020, 19:10

17

3,968

by: bumpbot

14 May 2022, 23:10

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If xy ≠ 0 and (xy/3)^(1/2) = x, what is y ? (1) x/y = 1/3 (2) x = 3

505-555 (Easy) | Algebra, Roots

505-555 (Easy) | Algebra, Roots hide tags

Bunuel

09 Mar 2020, 06:08

11

3

3,968

by: Bunuel

20 Jun 2021, 01:33

ER

A firm has two production choices. It could sell Q3 posters at a price

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

04 Nov 2019, 03:19

10

3

3,967

by: bumpbot

09 Jan 2026, 03:20

ER

If a machine depreciates each year at the rate of 50% of its previou

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

rheam25

15 Feb 2020, 05:49

11

4

3,967

by: bumpbot

12 Dec 2025, 03:23

Is x negative? (1) x^2 is positive. (2) x^3 is non-positive.

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kumar23badgujar

01 Oct 2023, 02:24

15

5

3,966

by: bumpbot

07 Mar 2023, 08:08

ER

The X boys and Y girls in a certain class took a math test.

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

fozzzy

17 Sep 2013, 01:59

3

4

3,966

by: bumpbot

24 Jun 2020, 06:55

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Is a 3-digit integer divisible by 3?

505-555 (Easy) | Multiples and Factors, Number Properties

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

amijags

10 Aug 2010, 05:48

5

4

3,966

by: bumpbot

14 Aug 2017, 03:07

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If 90 < x < 100, is the units' digit of x equal to 9 ?

555-605 (Medium) | Arithmetic +2 tags

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

AbdurRakib

06 Jun 2016, 11:13

2

3

3,965

by: Bunuel

04 Jan 2024, 09:06

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In the figure, O is the center of the circle of radius 3, an

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

smartyman

24 Jun 2014, 07:58

4

5

3,965

by: KarishmaB

20 Oct 2016, 22:53

ER

How many different prime factors does x have?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Harley1980

13 Apr 2015, 00:57

12

5

3,964

by: bumpbot

15 Sep 2025, 13:11

If a^2 is not equal to b^2, what is the value of

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

WM88

11 Nov 2019, 11:17

4

3,964

by: rajatchopra1994

03 Aug 2021, 19:06

ER

Is xy < 5 ? (1) x is prime and y is the reciprocal of a

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

surendar26

08 Dec 2010, 04:20

2

3,963

by: bumpbot

22 Aug 2017, 03:43

ER

Is x + x^2 + x^3 > 0? (1) x + x^2 > 0 (2) x^2 + x^3 > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

earnit

03 Oct 2014, 16:22

15

7

3,961

by: bumpbot

17 Oct 2023, 18:36

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If X = P*N^K + P where P, N and K are positive integers, is X odd?

705-805 (Hard) | Exponents, Number Properties

705-805 (Hard) | Exponents, Number Properties hide tags

Bunuel

19 Dec 2019, 02:32

9

3

3,961

by: bumpbot

02 Feb 2023, 02:08

ER

A fly crawls around the outside of a circle once. A second fly crawls

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

10 Aug 2017, 01:56

2

3,961

by: bumpbot

26 Jan 2020, 03:46

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Is n^2 an even integer?

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avohden

02 Nov 2013, 00:56

14

7

3,960

by: Bunuel

07 Jan 2021, 00:36

ER

If t is an integer, is 3^t a factor of 21!?

605-655 (Medium) | Exponents +2 tags

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

Bunuel

23 Feb 2021, 01:15

8

6

3,959

by: bumpbot

15 May 2022, 11:24

ER

The average (arithmetic mean) of the original six prices for six coats

805+ (Hard) | Statistics and Sets Problems

805+ (Hard) | Statistics and Sets Problems hide tags

gmatophobia

15 Mar 2022, 07:56

17

2

3,957

by: bumpbot

29 Jun 2025, 13:28

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If x and y are integers and x>y, then what is the value of x-y?

705-805 (Hard) | Algebra, Inequalities

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

mangamma

28 Apr 2019, 08:43

13

5

3,957

by: bumpbot

21 Jan 2022, 20:54

ER

If y, z, and b are positive integers greater than 1, what is the value

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

02 May 2016, 22:30

3

4

3,955

by: IanStewart

05 Jun 2021, 06:10

ER

In the Figure above, O is the center of a semicircle, and p

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

NateTheGreat11

05 Sep 2013, 10:00

5

3,955

by: bumpbot

11 Aug 2019, 18:55

ER

At a fair, tickets for rides cost 50 cents each. If Tim spen

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

fozzzy

11 Sep 2013, 05:20

3

8

3,955

by: bumpbot

13 Jan 2018, 01:05

ER

If n is a positive integer, what is the value of n?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

30 Jul 2017, 22:47

19

7

3,954

by: bumpbot

07 Jun 2024, 04:55

ER

If a, b and c are integers such that ab + c is an odd integer, is a an

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

EBITDA

26 May 2016, 02:24

16

4

3,954

by: bumpbot

28 Jan 2024, 12:41

ER

For integers x and y, is x + y even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

08 Feb 2017, 01:36

10

8

3,954

by: CapnSal

14 Dec 2023, 08:37

ER

How many students does Professor Garcia currently have in his class?

555-605 (Medium) | Algebra, Arithmetic

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

GloryBoy92

02 Jun 2019, 00:28

7

5

3,954

by: bumpbot

23 Jan 2023, 06:01

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

3,954

by: TestPrepUnlimited

28 Jun 2020, 14:05

ER

Is x an integer ?

605-655 (Medium) | Algebra, Number Properties

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

Carcass

23 Jan 2015, 06:48

9

4

3,953

by: bumpbot

17 Feb 2022, 04:23

ER

Is x a negative number? (1) x^2 is a positive number (2) x^3 is non-po

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

davidbeckham

01 May 2020, 16:14

11

5

3,952

by: bumpbot

23 Sep 2025, 17:50

ER

What is the units digit of integer s? (1) The units digit of

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dreambeliever

07 Jun 2011, 08:05

4

18

3,952

by: Harley1980

19 Jun 2015, 12:33

ER

The operators ‘*’ and ‘+’ operate only on the numbers 0 and 1 as defin

705-805 (Hard) | Functions and Custom Characters

705-805 (Hard) | Functions and Custom Characters hide tags

Bunuel

27 Jul 2015, 14:21

16

12

3,949

by: bumpbot

19 Oct 2025, 04:21

ER

In the figure, ABCD is a square, and OB is a radius of the

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Aragorn2584

03 Jul 2014, 13:04

3

3,948

by: bumpbot

08 Nov 2024, 10:48

ER

Is x > 0 ? (1) x^3 < x^4 (2) x^3 < x^5

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Awli

13 Apr 2015, 10:54

13

6

3,948

by: bumpbot

22 Sep 2023, 19:50

ER

If p is an integer and m= -p + (-2)^p, is m^3 >= -1

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

Bunuel

13 Nov 2019, 02:39

5

6

3,948

by: bumpbot

04 Feb 2021, 10:49

ER

A box contains orange, green and blue balls. If one ball is chosen at

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

02 Jun 2020, 09:15

9

7

3,947

by: bumpbot

08 Aug 2025, 22:54

ER

If working together two machines, A and B, can make a certain number

505-555 (Easy) | Work and Rate Problems

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

Bunuel

07 May 2017, 13:50

3

3,947

by: bumpbot

01 Jul 2021, 06:01

ER

It is known that cuberoot (r) is a positive integer

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

guerrero25

21 Mar 2013, 04:56

10

4

3,946

by: bumpbot

16 Aug 2024, 07:48

ER

If w + x + y = 42, what is the value of wxy?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

CONSULTINGDREAMER

29 Aug 2015, 01:52

7

11

3,946

by: bumpbot

13 Jun 2024, 20:08

ER

What is the units digit of even integer n ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

15 Jun 2018, 23:44

7

8

3,946

by: bumpbot

10 Jul 2023, 08:53

ER

Is mn < m/n ? (1) mn is a positive integer (2) n is a negative number

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Apr 2022, 07:00

9

4

3,945

by: bumpbot

10 Nov 2025, 15:06

ER

An arithmetic sequence is a sequence in which each term after the firs

805+ (Hard) | Statistics and Sets Problems

805+ (Hard) | Statistics and Sets Problems hide tags

Bunuel

25 May 2020, 05:03

9

5

3,945

by: bumpbot

17 Nov 2023, 17:13

ER

What is the value of x?

555-605 (Medium) | Roots

555-605 (Medium) | Roots hide tags

skylimit

10 Sep 2015, 12:33

9

8

3,944

by: bumpbot

15 Dec 2025, 04:40

ER

What is the value of 3x^2 + 2x – 1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

17 Sep 2017, 03:53

1

3

3,944

by: bumpbot

15 Aug 2019, 21:48

ER

The petrol tank of a car started to leak. Did the tank get empty in mo

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

siddharthkapoor

02 Nov 2020, 05:04

14

6

3,942

by: Bunuel

02 Jan 2026, 05:34

ER

Ted and Rali run one lap on a circular track. Ted runs in a circular

655-705 (Hard) | Distance and Speed Problems +2 tags

655-705 (Hard) | Distance and Speed Problems, Multiples and Factors, Word Problems hide tags

Bunuel

03 Dec 2019, 01:20

16

4

3,942

by: bumpbot

18 May 2025, 08:31

ER

What is the area bounded by the two lines and the co-ordinates axes in

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

02 Apr 2019, 03:40

7

2

3,942

by: bumpbot

06 May 2023, 07:14