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

78,829

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,589

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

488,031

by: bb

29 Aug 2025, 13:27

ER

Joe, Bob and Dan worked in the ratio of 1:2:4 hours, respectively. How

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

07 Oct 2014, 08:55

11

4

11,882

by: bumpbot

24 Apr 2025, 07:17

ER

If xy 0, is x/y < 0?

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Poor Quality hide tags

janani28

06 Oct 2014, 09:35

1

3

4,706

by: Carcass

31 Oct 2018, 11:44

ER

Edwin is planning to drive from Boston to New Orleans. By what percent

605-655 (Medium) | Distance and Speed Problems

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

Bunuel

06 Oct 2014, 08:53

186

13

24,838

by: bumpbot

16 Sep 2025, 10:21

ER

On Sunday morning, a printing press printed its newspapers at a consta

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

06 Oct 2014, 04:22

9

8

17,081

by: bumpbot

31 May 2024, 23:13

ER

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

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

aadikamagic

03 Oct 2022, 05:10

153

25

20,428

by: Bunuel

18 Jan 2026, 01:45

ER

The new recruits of a military organization who score in the bottom 16

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Hedwig

05 Oct 2014, 05:01

6

2

6,106

by: Hedwig

05 Oct 2014, 06:25

ER

If x is not equal to +or- y

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

earnit

04 Oct 2014, 05:31

18

13

4,503

by: bumpbot

11 Apr 2023, 04:31

ER

Four workers from an international charity were selling shirts at a lo

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

aadikamagic

04 Oct 2014, 01:19

65

13

14,178

by: bumpbot

24 Sep 2025, 09:20

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

3,953

by: bumpbot

17 Oct 2023, 18:36

ER

Is x > y? (1) x + 2(xy)^(1/2) + y = 0 (2) x^2 - y^2 = 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

earnit

10 Aug 2022, 01:43

36

10

7,473

by: bumpbot

11 Jan 2024, 02:08

ER

The average of a certain set of numbers is 20 and its

805+ (Hard) | Statistics and Sets Problems

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

earnit

09 Apr 2018, 04:39

44

8

10,418

by: bumpbot

11 Apr 2026, 04:58

ER

Is the product abcd divisible by 10?

655-705 (Hard) | Multiples and Factors

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

aadikamagic

03 Oct 2014, 11:32

14

8

6,899

by: bumpbot

05 Apr 2022, 05:00

ER

If there are x men and y women in a choir, and there are z more men

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

him1985

03 Oct 2014, 07:24

22

8

12,290

by: MasteringGMAT

20 Dec 2022, 07:26

ER

If x represents the number of positive factors of integer y, is x odd

655-705 (Hard) | Multiples and Factors

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

aadikamagic

02 Oct 2014, 20:39

123

12

19,068

by: bumpbot

23 Jun 2024, 23:40

What is the value of y ? (1) y^2 − 7y + 12 = 0 (2) y > 0

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

crazu4

02 Oct 2014, 17:50

4

5

7,005

by: bumpbot

04 Feb 2024, 08:21

ER

Buster leaves the trailer at noon and walks towards the studio at a co

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

17 Sep 2025, 04:05

160

7

19,742

by: bumpbot

13 Jul 2025, 21:04

ER

If n is an integer, then n is divisible by how many positive integers?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

joshuawang

01 Oct 2014, 19:05

12

11

4,846

by: bumpbot

23 Jan 2023, 06:46

ER

In the month of June, a street vendor sold 10% more hot dogs than he

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Bunuel

30 Sep 2014, 09:17

6

3

11,933

by: bumpbot

07 Apr 2025, 10:16

ER

When the digits of two-digit, positive integer M are reversed, the res

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

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

pratikshr

30 Sep 2014, 06:56

310

17

41,978

by: bumpbot

02 Jul 2025, 13:56

ER

If x and y are positive integers, what is the remainder when xy is div

655-705 (Hard) | Number Properties, Remainders

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

clipea12

29 Sep 2014, 23:21

88

13

17,941

by: bumpbot

02 Feb 2025, 01:38

ER

Is x^2 > y^2? (1) x + y < 0 (2) x - y < 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

mvictor

26 Sep 2014, 10:05

17

5

4,472

by: bumpbot

17 May 2022, 09:20

ER

In a country, 65% of male citizen and 68% of female citizen are

655-705 (Hard) | Percent and Interest Problems

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

iaratul

26 Sep 2014, 05:12

19

8

4,572

by: bumpbot

03 Mar 2025, 14:10

ER

Is J + K > L + M ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

gmatquant25

23 Sep 2014, 12:18

20

6

4,071

by: Bunuel

09 Dec 2025, 11:09

ER

In a freshman high school class there are 125 total students. If 75 of

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

PathFinder007

20 Sep 2014, 02:40

50

11

16,642

by: bumpbot

10 Oct 2025, 11:44

ER

Two chefs, Chef Andrew and Chef Bonnie, were hired to prepare a dinner

505-555 (Easy) | Work and Rate Problems

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

neeti1813

19 Sep 2014, 19:43

24

8

14,493

by: bumpbot

29 May 2023, 16:41

The volume of cylinder A is how much more than the volume of cylinder

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Poor Quality hide tags

DangerPenguin

29 Sep 2014, 07:37

1

8

4,099

by: DangerPenguin

29 Sep 2014, 07:37

ER

On a certain day, two telemarketers, V and W, each earned $80.

555-605 (Medium) | Work and Rate Problems

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

gabriel87

15 Sep 2014, 22:12

11

3

4,638

by: bumpbot

03 Oct 2023, 14:10

ER

Is x = -4 ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

nevilpat1

15 Sep 2014, 11:25

6

8

5,168

by: bumpbot

08 Jun 2024, 21:26

ER

What is the value of positive integer x? (1) x^4 < 1,000 (2) 2x < x^2

605-655 (Medium) | Exponents, Inequalities

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

clipea12

15 Sep 2014, 00:20

12

5

4,986

by: bumpbot

23 Jan 2023, 05:13

ER

If x, y, and z are positive integers, is x - y - z positive ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

clipea12

14 Sep 2014, 23:42

23

9

5,881

by: bumpbot

03 Dec 2023, 15:21

ER

When one new number is included in an existing set of 6 numbers

605-655 (Medium) | Statistics and Sets Problems

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

chetan86

12 Sep 2014, 07:24

26

6

9,900

by: bumpbot

10 Feb 2026, 10:51

ER

A herd of 33 sheep is sheltered in a barn with 7 stalls

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

chetan86

12 Sep 2014, 07:21

17

5

8,102

by: bumpbot

16 Jun 2024, 05:57

ER

What is the value of x? (x^2 + 3)^2 - 11(x^2 + 3) + 28 = 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

mikemcgarry

11 Sep 2014, 13:57

7

4

5,366

by: bumpbot

28 Oct 2025, 10:17

ER

Steve spent a total of $36 on transportation for 3 days. What was his

605-655 (Medium) | Statistics and Sets Problems

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

alphonsa

09 Sep 2014, 23:05

13

3

3,446

by: bumpbot

23 Jan 2026, 02:27

ER

Is the slope of Line K positive ?

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

nevilpat1

08 Sep 2014, 10:50

2

3,426

by: SalahT

25 Sep 2021, 05:34

ER

Each number after the first number in the sequence is 4 less than the

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

sejpara

07 Sep 2014, 07:59

3

3,805

by: bumpbot

06 Dec 2015, 13:04

ER

Is q - 1/5 > 6/7 ?

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

neeti1813

06 Sep 2014, 18:28

11

4

6,042

by: bumpbot

29 Jan 2024, 11:16

ER

Ian has three pets: Barnum the cat, Bailey the cat, and Daisy the dog,

655-705 (Hard) | Multiples and Factors, Word Problems

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

Maxirosario2012

06 Sep 2014, 14:45

22

15

8,754

by: bumpbot

24 Jun 2024, 05:10

ER

Is a^2 > 4a - 3b?

605-655 (Medium) | Exponents, Inequalities

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

CharlieSollers

05 Sep 2014, 19:13

13

3

6,519

by: bumpbot

17 Mar 2023, 06:13

ER

A jar contains red and green marbles, available in two sizes- small

555-605 (Medium) | Percent and Interest Problems

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

eshan429

05 Sep 2014, 00:43

9

4

3,567

by: bumpbot

09 Mar 2024, 14:32

ER

From a group consisting of ballet dancers from Italy, Germany, and

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

eshan429

04 Sep 2014, 20:29

31

8

8,380

by: bumpbot

13 Sep 2025, 07:15

ER

What is the sum of all 50 numbers in a list?

Sub 505 (Easy) | Statistics and Sets Problems

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

brunora

04 Sep 2014, 16:53

14

4

8,372

by: bumpbot

05 Apr 2019, 09:27

ER

Is x = 4 ? (1) (x^2)^(1/2) = 4 (2) |x| = -x

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

nevilpat1

01 Oct 2021, 06:26

12

9

4,281

by: chetan2u

01 Oct 2021, 04:43

ER

x is a positive integer less than 20. What is the value of x?

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

AmoyV

03 Sep 2014, 18:09

35

11

10,687

by: ariyan123

24 Oct 2025, 15:54

ER

What is the Average (mean) of x, y, and z?

Sub 505 (Easy) | Arithmetic

Sub 505 (Easy) | Arithmetic hide tags

eggplantpower

03 Sep 2014, 15:31

17

5

16,856

by: bumpbot

30 Jan 2025, 04:42

ER

Is the triangle PQR equilateral?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

pran21

03 Sep 2014, 12:00

20

11

6,830

by: bumpbot

12 Apr 2022, 01:13

ER

Given that m and n are integers, is m > n ?

555-605 (Medium) | Absolute Values, Inequalities

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

pran21

03 Sep 2014, 11:22

4

2

2,927

by: bumpbot

05 Nov 2022, 15:55

ER

If w, x, y and z are four positive integers,then is (w+x)(y-z) an odd

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

pran21

03 Sep 2014, 11:30

10

5

3,646

by: bumpbot

28 Jan 2024, 12:21

ER

If n is a positive integer, is n! divisible by 66 ?

555-605 (Medium) | Multiples and Factors

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

goodyear2013

03 Sep 2014, 08:44

17

2

6,915

by: Bunuel

12 Oct 2023, 00:39

ER

A cube is painted with blue and red color such that each color is pain

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

pran21

02 Sep 2014, 04:05

18

6

22,043

by: bumpbot

30 Sep 2024, 04:42