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

78,673

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

854

24

188,493

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

487,883

by: bb

29 Aug 2025, 13:27

ER

What is the value of k?

655-705 (Hard) | Algebra, Inequalities

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

Nevernevergiveup

25 Sep 2016, 06:52

31

10

9,241

by: bumpbot

31 Jul 2022, 09:12

ER

In the rectangular coordinate system, line k is defined by the equatio

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

30 Mar 2015, 05:42

20

11

9,240

by: bumpbot

02 Jun 2025, 05:22

ER

Given that x is a positive integer, what is the greatest common diviso

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

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

Bunuel

07 Jul 2015, 02:28

57

11

9,236

by: bumpbot

28 Mar 2025, 21:54

ER

How many rectangular boxes with the dimensions 1 foot by 3 f

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

nidhi12

05 Jun 2014, 04:20

15

11

9,234

by: bumpbot

14 Dec 2023, 01:21

ER

Is x + x^2 + ... +x^10 positive?

605-655 (Medium) | Exponents +2 tags

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

gmatpapa

02 Jan 2011, 02:34

39

2

9,232

by: bumpbot

21 Aug 2025, 15:54

ER

In a certain sequence, when you subtract the Mth element from the (M-1

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

02 Apr 2018, 02:17

32

7

9,231

by: bumpbot

14 Apr 2026, 01:23

ER

Is x divisible by 3?

705-805 (Hard) | Multiples and Factors

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

chetan2u

10 Dec 2016, 06:03

25

16

9,228

by: bumpbot

07 Nov 2024, 11:51

ER

Is 3^p > 2^q ? (1) q = 2p (2) q > 0

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

01 Jul 2018, 21:08

9

5

9,227

by: bumpbot

11 Sep 2023, 20:27

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If x > 0, is x/y > x ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

amitgovin

08 Oct 2009, 13:27

25

12

9,225

by: bumpbot

12 Apr 2025, 02:03

ER

If k is a positive integer, is square root of k an integer?

655-705 (Hard) | Inequalities, Number Properties

655-705 (Hard) | Inequalities, Number Properties hide tags

enigma123

07 Mar 2012, 15:55

13

4

9,225

by: Basshead

31 Oct 2020, 08:12

ER

A recent lunch meeting at a certain club was attended by members and

Sub 505 (Easy) | Algebra, Word Problems

Sub 505 (Easy) | Algebra, Word Problems hide tags

gmat1393

28 Jul 2025, 10:55

9

3

9,219

by: bumpbot

28 Jul 2025, 10:53

ER

If Randy has twice as many coins as Alice, and if Maria has 7 times as

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

23 May 2020, 07:23

10

5

9,218

by: bumpbot

17 Jan 2026, 05:54

ER

If some of the passengers of the boat Silver Trout board the

605-655 (Medium) | Percent and Interest Problems

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

nidhi12

11 Jun 2014, 02:29

23

15

9,216

by: bumpbot

11 Sep 2024, 00:39

ER

In right triangle ABC above, the length of AB is 5*3^1/2. What is the

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

13 May 2015, 04:38

18

10

9,213

by: bumpbot

23 Jan 2024, 00:35

ER

A cake recipe calls for sugar and flour in the ratio of 2 cups to 1 cu

505-555 (Easy) | Fractions and Ratios

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

Bunuel

20 Dec 2019, 00:07

6

7

9,213

by: Bunuel

22 Dec 2019, 22:41

ER

A state legislature had a total of 96 members. The members who did not

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

13 Jul 2018, 04:33

20

4

9,210

by: totaltestprepNick

25 Feb 2026, 15:24

ER

If 5^x = y, what is x?

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

04 Nov 2014, 10:03

21

8

9,210

by: Bunuel

27 Aug 2024, 23:45

ER

If |4 – x| = 8, what is the value of x?

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

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

Bunuel

23 Nov 2016, 03:12

13

7

9,210

by: bumpbot

24 Jan 2024, 08:25

ER

How many guests were present at the party?

505-555 (Easy) | Combinations

505-555 (Easy) | Combinations hide tags

Bunuel

06 Apr 2020, 02:15

19

11

9,205

by: bumpbot

18 Jun 2025, 11:28

ER

Ines has $15 to purchase fruit. All apples are priced equally and all

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

mbaORnoMBA

18 Aug 2019, 21:22

51

4

9,204

by: bumpbot

24 Jan 2026, 03:42

ER

Dealership A and Dealership B both sell cars and trucks. If the ratio

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

09 Jan 2020, 01:40

34

8

9,201

by: bumpbot

14 Feb 2025, 11:40

ER

Math Revolution and GMAT Club Contest! There is a sequence An when n

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

1, 2

Bunuel

05 Dec 2015, 08:52

48

37

9,195

by: bumpbot

15 Apr 2026, 12:06

In a class of 100 students, how many are boys? (There is at least 1 gi

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Aayu12

12 Jan 2020, 01:14

29

5

9,194

by: bumpbot

27 Sep 2025, 11:45

ER

What fraction of his salary did Mr. Johnson put into savings last week

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

GMATBusters

18 Nov 2018, 09:27

7

5

9,192

by: bumpbot

14 Aug 2024, 23:06

ER

For positive integers x and y, x^2 = 350y. Is y divisible

705-805 (Hard) | Multiples and Factors

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

jayaddula

09 May 2012, 16:25

41

11

9,191

by: bumpbot

12 Apr 2024, 10:02

ER

Is x > 0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

afife76

27 Feb 2014, 11:15

26

21

9,187

by: bumpbot

30 Oct 2021, 06:47

ER

If u and v are positive real numbers, is u>v? 1. u^3/v

805+ (Hard) | Arithmetic, Inequalities

805+ (Hard) | Arithmetic, Inequalities hide tags

vivgmat

16 Jul 2011, 07:17

48

8

9,184

by: Saupayan

02 Sep 2023, 09:34

ER

What is the two-digit number N?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

monikaleoster

03 Nov 2012, 08:48

32

13

9,184

by: bumpbot

08 Jul 2022, 02:53

ER

What is the area of the quadrilateral with vertices A, B, C, and D?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

21 Apr 2020, 03:45

20

5

9,183

by: bumpbot

27 Feb 2023, 17:42

ER

If Q is a set of consecutive integers, what is the standard

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

ruturaj

02 Jul 2011, 13:43

43

13

9,179

by: bumpbot

03 Jun 2025, 02:16

ER

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

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

GMATBusters

01 Oct 2022, 04:14

4

3

9,177

by: bumpbot

01 Sep 2025, 04:34

ER

Are at least 20% of the people in City H who are at least 30

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

anjanapadmaraj4

11 Aug 2011, 07:28

36

12

9,175

by: Adit_

23 Feb 2026, 23:58

ER

If n is an integer, is 10^n ≤ 0.001 ?

555-605 (Medium) | Exponents, Inequalities

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

MHIKER

22 Jan 2012, 08:17

14

9

9,170

by: bumpbot

03 Mar 2025, 08:54

ER

If x and y are positive integers and x + y = 3^x, is y divisible by 6?

705-805 (Hard) | Exponents +2 tags

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

Bunuel

09 Jun 2015, 02:41

42

14

9,170

by: bumpbot

30 Jul 2024, 10:48

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

9,170

by: Bunuel

01 Nov 2020, 01:46

ER

The function y=px^2-4x+q in the x-y plane attains a

605-655 (Medium) | Functions and Custom Characters

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

MathRevolution

09 Jan 2018, 18:53

42

11

9,169

by: bumpbot

10 Jun 2025, 11:13

ER

St. Francis’s gym coach is planning a kickball tournament

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

acegmat1

04 May 2014, 20:12

23

7

9,168

by: bumpbot

28 Oct 2025, 13:22

ER

Is x > 6 ? (1) x^(1/2) > 2.5 (2) x > 37^(1/2)

555-605 (Medium) | Inequalities, Roots

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

akxshay

13 Mar 2016, 15:28

31

9

9,163

by: bumpbot

05 Feb 2025, 02:12

ER

Two circles overlap such that the center of each circle lies on the ci

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

12 Feb 2015, 07:02

13

11

9,159

by: bumpbot

17 Aug 2021, 23:15

ER

Ralph is giving out Valentine’s Day cards to his friends.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2

honchos

16 Sep 2013, 02:24

52

20

9,158

by: bumpbot

02 Aug 2025, 15:42

ER

What is the area of right triangle ABC?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

23 Jan 2015, 07:39

15

8

9,155

by: bumpbot

15 Feb 2023, 08:14

ER

Is positive integer x divisible by 48?

555-605 (Medium) | Multiples and Factors

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

Bunuel

20 May 2018, 11:41

16

8

9,151

by: bumpbot

03 Aug 2024, 14:50

ER

Line L is perpendicular to line K whose equation is 3y = 4x + 12; Line

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Bunuel

09 Mar 2016, 13:28

37

9

9,151

by: Nidanyr

14 Apr 2023, 02:13

ER

Hallie has only nickels, dimes and quarters in her pocket. If she has

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 May 2015, 03:22

21

7

9,137

by: bumpbot

12 Nov 2024, 20:51

ER

How many different prime numbers are factors of the positive integer

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

shelrod007

22 Jul 2023, 03:48

21

3

9,136

by: Bunuel

21 Jan 2024, 11:59

ER

From a group of 6 employees, k employees are chosen to be on the party

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

BrentGMATPrepNow

04 Apr 2017, 08:35

32

7

9,135

by: bumpbot

30 Aug 2025, 18:15

ER

What was Bill's average (arithmetic mean) grade for all of his courses

Sub 505 (Easy) | Statistics and Sets Problems

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

adkikani

20 Nov 2018, 09:12

11

6

9,134

by: nurbijoy

12 Nov 2025, 22:24

ER

Is the positive integer n odd? (1) n = 2k + 1, where k is a positive

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

03 Mar 2020, 04:00

4

3

9,125

by: bumpbot

05 Sep 2023, 11:53

ER

If both x and y are positive integers less than 100 and

555-605 (Medium) | Multiples and Factors

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

kingb

06 Nov 2012, 18:31

10

3

9,123

by: bumpbot

11 Sep 2021, 03:39

ER

Is |x – 3| > |y – 3|?

555-605 (Medium) | Absolute Values, Inequalities

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

banksy

25 Jul 2013, 02:13

38

18

9,123

by: CEdward

03 Feb 2021, 12:51