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

79,274

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

188,864

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

488,489

by: bb

29 Aug 2025, 13:27

ER

Each student at a certain Mathematics exam either solved the hardest

705-805 (Hard) | Statistics and Sets Problems

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Bunuel

07 Nov 2019, 02:53

31

5

4,887

by: crimson_noise

22 Oct 2025, 06:33

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Is the positive integer p the sum of the positive prime

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

wininblue

21 Aug 2010, 04:24

2

6

4,889

by: Bunuel

16 Apr 2014, 07:32

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Is the value of x less than 0? (1) The product of x and y is negative

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

17 Oct 2019, 21:19

16

18

4,889

by: GMATGuruNY

07 Jan 2024, 22:57

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P and Q are positive integers. Is P odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

23 Feb 2015, 03:19

2

3

4,890

by: Salsanousi

04 Oct 2018, 08:12

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If x and y are positive integers, is 4x – 7y < 0?

655-705 (Hard) | Exponents, Inequalities

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

energetics

24 Mar 2019, 13:07

17

4

4,891

by: bumpbot

15 Nov 2023, 00:42

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Is a product of three integers xyz a prime?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

11 Apr 2018, 09:02

18

3

4,891

by: bumpbot

17 May 2024, 17:34

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If d = 1/(2^k*5^m), m > k (m and k are positive integers) is a termina

805+ (Hard) | Fractions and Ratios, Number Properties

805+ (Hard) | Fractions and Ratios, Number Properties hide tags

Bunuel

15 Nov 2019, 02:30

31

2

4,892

by: bumpbot

05 Jan 2025, 19:53

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3^(-(x + y))/3^(-(x - y)) =

555-605 (Medium) | Exponents

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rahulms

27 Jul 2015, 14:47

3

11

4,894

by: thesip2323

10 Apr 2022, 10:25

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If x+2/y = 3, is xy an integer?

705-805 (Hard) | Algebra, Number Properties

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

mau5

19 May 2013, 07:50

13

10

4,894

by: bumpbot

01 Nov 2024, 09:26

ER

A cafe has a lunch special with a base price of $5.00.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

BukrsGmat

09 Aug 2012, 23:30

11

3

4,895

by: dd29

15 Sep 2014, 03:40

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Is z less than 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

metallicafan

14 Dec 2011, 09:57

3

7

4,895

by: bumpbot

10 Dec 2022, 09:52

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If p is a prime number and n is a positive integer, what is the number

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

MathRevolution

25 Jul 2018, 01:08

9

6

4,896

by: bumpbot

03 Apr 2025, 08:43

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Every member of a local chess club is assigned one of two skill levels

805+ (Hard) | Fractions and Ratios, Word Problems

805+ (Hard) | Fractions and Ratios, Word Problems hide tags

Bunuel

09 Dec 2019, 01:06

17

3

4,896

by: bumpbot

24 Jun 2025, 11:12

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The average (arithmetic mean) of 3 positive integers, x, y, and z, is

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

23 May 2020, 08:38

2

5

4,897

by: bumpbot

21 Nov 2022, 10:51

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p is an integer; n is an integer; and p/n is an integer. Is p/n odd?

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

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

Bunuel

08 Feb 2018, 23:40

8

6

4,900

by: bumpbot

08 Apr 2022, 02:48

ER

The numbers a, b, and c are all non-zero integers. Is a > 0?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

02 Mar 2015, 08:15

13

8

4,902

by: bumpbot

21 Mar 2022, 03:52

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If gh < 0 < gk, is g < 0? (1) k < h (2) 0 < h

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

EMPOWERgmatRichC

07 Nov 2015, 16:23

16

11

4,902

by: bumpbot

04 Oct 2022, 03:04

ER

If Shannon's age is exactly half of Josh's age, what is Shannon's age?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Feb 2015, 07:05

4

7

4,902

by: bumpbot

19 Nov 2022, 05:40

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If x ≠ y, is 1/(x - y) < y - x?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

rxs0005

24 Jan 2011, 06:34

14

11

4,903

by: bumpbot

02 Jun 2025, 15:21

ER

12 Days of Christmas GMAT Competition - Day 8: At an office Christmas

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

20 Dec 2023, 07:00

25

6

4,904

by: bumpbot

02 Sep 2025, 08:36

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Event E and event F are independent. Is the probability that both even

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

MathRevolution

04 May 2017, 01:21

23

4

4,905

by: bumpbot

19 Oct 2025, 04:18

ER

A circle with center (1, 0) and radius 2 lies in the

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

rxs0005

19 Mar 2011, 06:43

15

7

4,906

by: bumpbot

09 Dec 2019, 01:26

ER

A bag contains only two types of coins: 10 cent coins or 1 dollar coin

655-705 (Hard) | Fractions and Ratios

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

rheam25

09 Feb 2020, 07:51

14

4

4,907

by: bumpbot

18 Apr 2023, 10:39

ER

Any decimal that has a finite number of nonzero digits is a terminatin

505-555 (Easy) | Fractions and Ratios

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

Bunuel

31 Aug 2016, 05:43

6

7

4,907

by: bumpbot

17 Jul 2023, 07:03

ER

If x = 5 y, is x > 0?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

banksy

14 Mar 2011, 16:34

4

11

4,909

by: CrackverbalGMAT

23 Jan 2020, 03:57

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If A and B are integers and A^2-B^2=101, what is A?

805+ (Hard) | Algebra, Number Properties

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

chetan2u

13 Apr 2016, 03:04

8

5

4,910

by: stne

25 Dec 2018, 09:05

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What is the length in meters of a certain rectangular garden?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

30 Oct 2019, 21:38

1

4,912

by: Archit3110

31 Oct 2019, 00:35

ER

There are seven team and each team has to play with three other teams

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

GMATBusters

27 Oct 2018, 10:18

28

4

4,912

by: bumpbot

06 Aug 2025, 02:59

ER

George scored 85 on an exam. Did George do better than 90

555-605 (Medium) | Statistics and Sets Problems

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

josemnz83

07 Jul 2013, 08:57

5

8

4,913

by: Bunuel

17 Jul 2013, 05:47

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Is (A/B)^3 < (AB)^3 ? (1) A > 0 (2) AB > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

11 Sep 2019, 21:10

6

10

4,913

by: kris19

12 Sep 2019, 07:35

ER

By what percent is the time taken by 12 men to complete a pa

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tabsang

28 Dec 2012, 05:49

10

6

4,914

by: fmomen01

22 Oct 2013, 07:14

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John and Tom leave the school at the same time to each of their houses

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

MathRevolution

13 Feb 2017, 01:00

11

6

4,914

by: bumpbot

16 Jan 2023, 12:19

ER

In the above figure, lines AB and CD are perpendicular to one another.

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

21 May 2020, 01:48

18

5

4,914

by: AnthonyRitz

13 Feb 2023, 08:15

ER

12 Days of Christmas GMAT Competition - Day 12: Set A consists of 50

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

25 Dec 2020, 19:00

30

9

4,914

by: bumpbot

20 Mar 2026, 22:30

ER

If the sequence S has 100 terms, what is the 7th term of S?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

15 Aug 2019, 00:55

2

5

4,915

by: bumpbot

06 Nov 2020, 10:39

ER

If x, y, and z are positive integers, is (x!)(y!) > z! ?

605-655 (Medium) | Exponents, Inequalities

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

Bunuel

05 Apr 2016, 08:31

12

5

4,915

by: bumpbot

09 Aug 2024, 08:20

ER

What is the value of x + y? (1) |x + y| = 11 (2) (44(x + y))^(1/2) =22

505-555 (Easy) | Absolute Values, Roots

505-555 (Easy) | Absolute Values, Roots hide tags

Bunuel

03 Apr 2018, 21:34

5

3

4,916

by: bumpbot

18 Sep 2025, 14:28

ER

Is |x + 1| + |x - 2| < 4 ?

705-805 (Hard) | Absolute Values, Inequalities

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

cnsih1532

16 May 2020, 06:46

27

6

4,918

by: bumpbot

06 Aug 2025, 06:24

ER

Is 2/x + 2/y = 30?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

vaishnogmat

17 Nov 2013, 23:25

7

15

4,919

by: bumpbot

14 Nov 2023, 14:51

ER

If x is a not-zero number, is x^2 + 2x > x^2 + x?

655-705 (Hard) | Algebra, Inequalities

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

thevenus

28 Dec 2023, 23:49

3

6

4,919

by: Bunuel

13 Jan 2024, 13:46

ER

In a certain daycare, are there more boys than girls?

555-605 (Medium) | Inequalities, Word Problems

555-605 (Medium) | Inequalities, Word Problems hide tags

Bunuel

07 Apr 2022, 01:30

7

3

4,920

by: bumpbot

04 Apr 2024, 22:48

ER

Is r^x < 100?

705-805 (Hard) | Exponents +2 tags

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Bunuel

03 Oct 2017, 00:05

34

8

4,921

by: bumpbot

22 May 2023, 08:00

ER

Around the World in 80 Questions (Day 7): Is k an even integer ?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

25 Jul 2023, 08:00

36

4

4,923

by: Saburjon

25 Jul 2023, 09:30

ER

Stations M and N are connected by two separate, straight and parallel

555-605 (Medium) | Work and Rate Problems

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

geometric

28 Apr 2016, 13:59

4

1

4,924

by: Bunuel

28 Apr 2016, 14:24

ER

Is p positive?

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

28 Feb 2017, 04:50

8

6

4,924

by: bumpbot

13 Sep 2022, 11:03

ER

If r and s are non-negative, what is the ratio of r to s?

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anulfc

14 Jun 2015, 15:40

4

10

4,925

by: IanStewart

16 Jun 2015, 14:54

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If r + s = 4, is s < 0? (1) -4 > -r (2) r > 2s + 2

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Jul 2015, 01:43

6

4,926

by: Bunuel

17 Aug 2015, 09:33

ER

How many paintings does Jill own? (1) If Jill sells 5 of her painting

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

03 Mar 2021, 14:54

3

4,926

by: bumpbot

12 May 2022, 02:22

ER

12 Days of Christmas GMAT Competition - Day 9: Ron has invited his fri

655-705 (Hard) | Fractions and Ratios, Word Problems

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

Bunuel

22 Dec 2022, 07:00

15

7

4,926

by: bumpbot

16 Apr 2024, 03:23

ER

In a certain election, of the voters in District X and of the voters

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

guddo

24 Jan 2024, 23:06

13

2

4,926

by: GMATinsight

22 Mar 2025, 00:44