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

79,419

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

188,928

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

488,599

by: bb

29 Aug 2025, 13:27

ER

When 2 numbers are removed from 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19,

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

04 Jan 2023, 02:30

11

6

3,902

by: KRNSW

27 Aug 2025, 11:14

ER

Two football teams, A and B, each played ten games in a season

555-605 (Medium) | Statistics and Sets Problems

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

tapasgupta

14 Jul 2019, 00:10

10

3

5,876

by: bumpbot

27 Aug 2025, 17:13

ER

If sets A and B have the same number of terms, is the

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Smita04

20 May 2012, 22:48

139

17

25,790

by: bumpbot

28 Aug 2025, 03:09

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If X and Y are single-digit positive integers, is X + Y

705-805 (Hard) | Multiples and Factors

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

goodyear2013

11 Jan 2014, 06:19

11

2

5,797

by: bumpbot

28 Aug 2025, 07:37

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Alice studies for a hours on each of Monday, Tuesday, and Thursday. Sh

605-655 (Medium) | Statistics and Sets Problems

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

MathRevolution

23 Mar 2018, 00:21

9

4

2,895

by: bumpbot

28 Aug 2025, 07:55

ER

If B and A are integers, is A/B an integer?

655-705 (Hard) | Fractions and Ratios, Number Properties

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

chetan2u

12 Apr 2016, 20:22

10

6

3,175

by: bumpbot

28 Aug 2025, 07:56

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In a club for left-handed people that also admits the ambidextrous, ar

655-705 (Hard) | Overlapping Sets, Probability

655-705 (Hard) | Overlapping Sets, Probability hide tags

Bunuel

04 Nov 2019, 02:43

22

6

7,350

by: TychoBrahe147

28 Aug 2025, 09:01

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Data Sufficiency Pack 2, Question 4) On a number line...

655-705 (Hard) | Arithmetic, Number Properties

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

EMPOWERgmatRichC

01 Nov 2015, 17:40

25

10

5,595

by: bumpbot

29 Aug 2025, 03:24

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If a, b, and c are positive integers, a - b = ? (1) 3^a*7^b = 21^c (2

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

27 Sep 2021, 01:30

7

4

3,726

by: bumpbot

29 Aug 2025, 21:34

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From the start to the end of the trading day on Monday, the price of a

805+ (Hard) | Min-Max Problems, Percent and Interest Problems

805+ (Hard) | Min-Max Problems, Percent and Interest Problems hide tags

MartyMurray

07 Mar 2026, 09:19

6

2

1,044

by: stne

30 Aug 2025, 08:50

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The average (arithmetic mean) earnings of the members of group A

705-805 (Hard) | Statistics and Sets Problems, Word Problems

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

Bunuel

13 Aug 2025, 22:00

10

3

1,177

by: Bunuel

30 Aug 2025, 09:00

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If a^5*b^6*c^7 > 0, is a*b^3*c^5 <0 ? (1) b < 0 (2) c > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

13 Jul 2023, 01:30

4

1,843

by: bumpbot

30 Aug 2025, 21:06

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The ratio of As current age to Bs current age is 5:8. What will be

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

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

guddo

14 Aug 2024, 03:30

10

3

4,083

by: bumpbot

31 Aug 2025, 21:00

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Is n < 0? (1) m < n (2) -n < m

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

26 Sep 2019, 04:44

13

9

6,715

by: bumpbot

31 Aug 2025, 22:29

ER

Does x have at least 3 prime factors? (1) x = 5b, where b is a positiv

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

05 Mar 2019, 05:21

2

5

1,687

by: Bunuel

02 Sep 2025, 06:09

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

4,912

by: bumpbot

02 Sep 2025, 08:36

ER

Is n an integer greater than 4?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

30 Sep 2022, 14:12

20

6

16,182

by: bumpbot

02 Sep 2025, 10:03

ER

In a certain club, every member likes red wine or white wine or both.

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

Bunuel

12 Feb 2021, 01:15

17

4

10,332

by: bumpbot

02 Sep 2025, 10:55

ER

Is P odd? (1) The cube root of P is odd (2) P^3 is odd

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

gmatxsurf

09 Sep 2020, 03:44

12

11

4,434

by: BinodBhai

02 Sep 2025, 11:49

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If P is an odd positive integer such that P<75, then is the number

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Syumbel1

28 Nov 2023, 07:45

5

4

1,316

by: Bunuel

03 Sep 2025, 02:25

ER

List A ={1, 2, 3, 4, 5, 6, 7, 8, 9, 10} The integers from list A

805+ (Hard) | Number Properties +2 tags

805+ (Hard) | Number Properties, Overlapping Sets, Statistics and Sets Problems hide tags

kiran120680

13 Jun 2019, 09:13

32

6

7,307

by: bumpbot

03 Sep 2025, 06:16

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If x is less than 75 percent of y, is x less than 75 ?

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

sananoor

28 Jul 2017, 04:36

25

8

6,550

by: bumpbot

03 Sep 2025, 07:04

ER

If x is a positive number, is x greater than 1? (1) 1>1/x (2) -1/x >-1

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

02 Oct 2022, 07:51

3

3,496

by: bumpbot

03 Sep 2025, 07:21

ER

What was Bill's average speed on his trip of 250 miles from New York

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

Bunuel

28 Mar 2016, 02:23

11

8

13,459

by: bumpbot

04 Sep 2025, 04:40

ER

Does x – y = 200? (1) x=10^2 (2) x=100 and y=-100

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

pinkcupcake

17 Mar 2015, 09:39

3

4

6,111

by: bumpbot

04 Sep 2025, 07:54

ER

In a piggy bank filled with only pennies, nickels, and dimes, what is

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

Bunuel

21 Oct 2025, 09:28

25

10

17,415

by: bumpbot

04 Sep 2025, 07:57

ER

Lori's Laminate has set an annual goal of cutting head count at its Te

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

18 Jun 2022, 07:30

6

5

1,617

by: Bunuel

04 Sep 2025, 08:31

ER

Is the average (arithmetic mean) height of Porthos, Athos, and Aramis

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

24 Mar 2026, 08:22

15

7

6,528

by: bumpbot

04 Sep 2025, 08:58

ER

If |x| = |y|, is x/y = -1 (1) x < 0 (2) y > 0

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

DaniGmat77

07 Aug 2020, 10:53

13

3

5,940

by: bumpbot

04 Sep 2025, 15:20

ER

If the probability that there is exactly 1 defective pen in a box is 1

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

13 Nov 2019, 01:52

18

2

5,367

by: bumpbot

05 Sep 2025, 09:00

ER

How long does it take for Ben to travel from his home to office on Fri

655-705 (Hard) | Distance and Speed Problems

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

hr1212

11 Feb 2025, 07:01

16

4

2,016

by: stne

06 Sep 2025, 10:43

ER

Jake invested x dollars for a simple annual interest rate of y percent

655-705 (Hard) | Percent and Interest Problems

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

Bunuel

13 May 2021, 22:00

11

3

5,233

by: bumpbot

06 Sep 2025, 14:03

ER

The ratio of cats to dogs at a pet store is 11:15. The ratio of dogs

655-705 (Hard) | Fractions and Ratios

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

Bunuel

26 Nov 2019, 00:55

5

5,768

by: Bunuel

07 Sep 2025, 09:47

ER

If x and y are consecutive even numbers, what is the value of x + y?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

gmatophobia

10 Apr 2022, 13:11

7

2

1,786

by: bumpbot

07 Sep 2025, 09:48

ER

In how many places does the graph of the equation y = ax^2 + bx + c in

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

26 Mar 2020, 01:27

25

10

5,899

by: bumpbot

07 Sep 2025, 11:22

ER

If m and n are positive integers where m>n, and if z is and odd prime

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

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

Bunuel

08 Jun 2023, 01:30

13

4

2,041

by: bumpbot

07 Sep 2025, 13:38

ER

The host of a television debate show has to select a 4-member

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

kiran120680

17 Apr 2019, 05:10

39

6

7,707

by: DylanD

08 Sep 2025, 11:25

ER

A store purchased a computer for $800 and then sold it. Was the store

605-655 (Medium) | Percent and Interest Problems, Word Problems

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

gmatophobia

18 Feb 2024, 22:44

47

4

10,779

by: bumpbot

08 Sep 2025, 13:40

ER

Can a batch of identical cookies be split evenly between Laurel and Je

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

24 Oct 2014, 09:20

50

11

16,306

by: bumpbot

09 Sep 2025, 07:35

ER

If A represents the tens digit and B represents the units digit in the

655-705 (Hard) | Multiples and Factors, Number Properties

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

Bunuel

23 Oct 2023, 01:30

2

4

1,341

by: Bunuel

09 Sep 2025, 08:42

ER

If x is a positive integer, is x divisible by 4?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

20 Oct 2021, 03:30

6

3

3,783

by: bumpbot

09 Sep 2025, 09:12

ER

All the apartments in a certain building are either three-bedroom apar

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

gmatophobia

24 Feb 2024, 14:47

97

7

15,645

by: Bunuel

10 Sep 2025, 10:42

ER

Let x and y be 2 positive integers such that x/y=12.12, what is the va

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

AkhilAggarwal

26 May 2021, 17:31

18

5

3,222

by: bumpbot

10 Sep 2025, 10:52

ER

Is 7^7/7^x an integer?

655-705 (Hard) | Algebra +2 tags

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

aramjung

19 Mar 2010, 19:35

38

3

15,060

by: bumpbot

11 Sep 2025, 00:16

ER

If x^(1/3) is a positive integer, does x^(1/3) have more than two dist

655-705 (Hard) | Exponents, Multiples and Factors

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

alphabeta1234

08 Apr 2012, 19:36

22

6

6,137

by: bumpbot

11 Sep 2025, 03:11

ER

Is x² + y² > -2xy? (1) xy > 0 (2) x - y = 4

655-705 (Hard) | Algebra, Inequalities

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

BrentGMATPrepNow

07 Mar 2023, 09:14

3

4

3,123

by: bumpbot

11 Sep 2025, 07:04

ER

In a certain company, the average (arithmetic mean) salary of finance

705-805 (Hard) | Statistics and Sets Problems

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

GMATBusters

07 Oct 2018, 05:26

13

14

3,878

by: bumpbot

12 Sep 2025, 04:32

ER

A shop offers candy bars for sale either individually or in packs of

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

11 Aug 2025, 05:16

12

4

7,107

by: bumpbot

12 Sep 2025, 09:19

ER

When a positive integer 'x' is divided by a divisor 'd', the remainder

805+ (Hard) | Multiples and Factors, Remainders

805+ (Hard) | Multiples and Factors, Remainders hide tags

Bunuel

09 Mar 2016, 13:36

129

9

14,421

by: bumpbot

12 Sep 2025, 14:56

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

8,410

by: bumpbot

13 Sep 2025, 07:15