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

79,212

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

857

24

188,816

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

488,441

by: bb

29 Aug 2025, 13:27

ER

Is x an even integer?

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

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

Bunuel

28 Apr 2015, 05:15

36

10

6,647

by: hiteshlimbasiya

05 Jun 2025, 09:27

ER

Set T is a finite set of positive consecutive multiples of 14. How

705-805 (Hard) | Multiples and Factors +2 tags

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Bunuel

09 Oct 2015, 02:13

59

17

10,806

by: bumpbot

05 Jun 2025, 03:07

ER

Grass on a lawn grows everyday by a fixed percent of the height on the

605-655 (Medium) | Percent and Interest Problems

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

Bunuel

04 Jun 2025, 00:30

1

3

840

by: ravi1522

05 Jun 2025, 00:18

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Is a^2 > 3a b^4?

655-705 (Hard) | Algebra, Inequalities

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

Bunuel

02 Oct 2015, 01:41

41

15

10,705

by: Bunuel

04 Jun 2025, 23:46

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Two pipes, A and B, empty into a reservoir. Pipe A can fill the

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

02 Jun 2025, 00:30

7

4

1,147

by: akshatj28

04 Jun 2025, 19:32

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If a is a positive integer, k and m are integers, and k > m, is a^k >

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

28 Jan 2022, 02:21

10

2

2,502

by: bumpbot

04 Jun 2025, 15:45

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If a, b and x are integers such that a^6=b^3=|x|/x, what is the value

655-705 (Hard) | Absolute Values +2 tags

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Bunuel

10 Jan 2022, 02:30

20

5

3,928

by: bumpbot

04 Jun 2025, 15:24

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Are the numbers k/4, z/3, and r/2 in increasing order?

605-655 (Medium) | Inequalities, Number Properties

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

Bunuel

15 Dec 2014, 08:50

14

4

7,951

by: bumpbot

04 Jun 2025, 15:05

ER

What is the value of the two-digit number x?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

1, 2

Bunuel

07 Oct 2015, 06:31

76

28

25,126

by: bumpbot

04 Jun 2025, 12:07

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If each of the bowlers in a tournament bowled an equal number of games

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

27 Dec 2015, 09:10

13

4

5,924

by: PunitJalan

04 Jun 2025, 08:03

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How long would it take Sue to paint the room?

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

03 Jun 2025, 00:30

4

3

760

by: Ayeka

03 Jun 2025, 19:31

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In a product test of a common cold remedy, x percent of the patients

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

16 Jun 2016, 04:24

148

11

33,891

by: bbb1923

03 Jun 2025, 14:27

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Over the course of a year, a certain house appreciated in value by 10

655-705 (Hard) | Percent and Interest Problems

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

Bunuel

03 Jun 2025, 00:30

5

2

942

by: Dereno

03 Jun 2025, 11:00

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Erin writes a list of every sixth integer in increasing order, startin

805+ (Hard) | Multiples and Factors +2 tags

805+ (Hard) | Multiples and Factors, Number Properties, Word Problems hide tags

Bunuel

06 Apr 2022, 08:00

12

2

3,001

by: bumpbot

03 Jun 2025, 06:16

ER

A fish tank contains a number of fish, including 5 Fantails. If two

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

11 Jul 2017, 03:22

6

9

6,769

by: bumpbot

03 Jun 2025, 05:57

ER

Is n < 0 (1) -n = |-n| (2) n^2 = 16

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

13 Oct 2021, 01:30

19

5

4,826

by: bumpbot

02 Jun 2025, 15:59

ER

Company X employs more than 5 people, and will choose 2 employees at

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

31 Dec 2019, 11:11

15

6

4,010

by: bumpbot

02 Jun 2025, 09:45

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If x^{n+1} - 2x^n=3x^n, then what is the value of x^n?

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

17 Jul 2016, 11:25

8

9

4,319

by: bumpbot

02 Jun 2025, 05:48

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If wxyz 0, does the ratio of w to x equal the ratio of y to z?

555-605 (Medium) | Fractions and Ratios

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

Bunuel

06 Apr 2022, 01:30

8

2

3,260

by: bumpbot

02 Jun 2025, 05:40

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

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

11 Jul 2023, 01:30

3

1,226

by: bumpbot

02 Jun 2025, 05:34

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

9,248

by: bumpbot

02 Jun 2025, 05:22

ER

If a and b are integers, is a^5 < 4^b ? (1) a^3 = –27 (2) b^2 = 16

555-605 (Medium) | Exponents, Inequalities

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

1, 2

Bunuel

26 Apr 2019, 02:38

170

22

30,225

by: minnieminnoon

02 Jun 2025, 04:40

ER

k is an integer from 1 to 9 inclusive. If N = 29736 + k , what is the

555-605 (Medium) | Multiples and Factors

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

Bunuel

01 Apr 2015, 05:02

17

6

10,766

by: bumpbot

02 Jun 2025, 02:13

ER

If P = k^3 - k^2, where k and P are positive integers, is P divisible

805+ (Hard) | Multiples and Factors, Remainders

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

Bunuel

28 Nov 2022, 10:15

10

8

2,275

by: chetan2u

01 Jun 2025, 23:02

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HOT Competition 2 Sep/8PM: If k is a positive integer and 175 divided

805+ (Hard) | Number Properties, Remainders

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

Bunuel

02 Sep 2020, 20:00

17

6

5,824

by: bumpbot

01 Jun 2025, 14:46

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If T is a prime number, what is the remainder when T is divided by 3?

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

Bunuel

22 May 2020, 02:59

17

3

3,197

by: NoeticImbecile

01 Jun 2025, 11:26

ER

If S is a sequence of consecutive multiples of 3, how many multiples

705-805 (Hard) | Multiples and Factors

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

Bunuel

08 Apr 2021, 09:00

5

3

1,854

by: bumpbot

01 Jun 2025, 07:46

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If r, s, and t are all positive integers, what is the remainder of 2^p

555-605 (Medium) | Number Properties, Remainders

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

Bunuel

23 Oct 2014, 00:40

71

13

15,106

by: bumpbot

01 Jun 2025, 05:06

ER

Is the average (arithmetic mean) of the numbers x, y, and z greater th

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

1, 2

Bunuel

26 Apr 2019, 02:45

128

20

32,153

by: bumpbot

01 Jun 2025, 04:18

ER

If % denotes one of the arithmetic operations, addition, subtraction,

805+ (Hard) | Functions and Custom Characters

805+ (Hard) | Functions and Custom Characters hide tags

Bunuel

20 May 2020, 03:11

9

4

2,841

by: bumpbot

01 Jun 2025, 00:12

ER

HOT Competition: A function g is defined, for all positive integers x

805+ (Hard) | Functions and Custom Characters

805+ (Hard) | Functions and Custom Characters hide tags

Bunuel

25 Aug 2020, 20:00

22

5

6,632

by: bumpbot

31 May 2025, 23:25

ER

Fuel tanker A can fill the underground reservoir in 12 minutes.

505-555 (Easy) | Work and Rate Problems

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

Bunuel

30 May 2025, 00:30

3

2

650

by: Missinga

31 May 2025, 18:01

ER

A university has 2,000 faculty members all of whom have a masters

555-605 (Medium) | Overlapping Sets

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Bunuel

30 May 2025, 00:30

2

604

by: ManifestDreamMBA

31 May 2025, 11:38

ER

If the positive integer n is added to each of the integers 69, 94, and

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

16 Jun 2016, 05:41

735

17

61,824

by: bumpbot

31 May 2025, 11:03

ER

If f(x) is a linear function, what is the value of f(1)?

805+ (Hard) | Algebra, Functions and Custom Characters

805+ (Hard) | Algebra, Functions and Custom Characters hide tags

Bunuel

10 Jul 2017, 04:36

42

6

6,544

by: bumpbot

31 May 2025, 07:51

ER

On Fridays in July, the Schick family always goes to the pool, unless

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

15 May 2025, 23:54

12

4

1,041

by: Rahilgaur

31 May 2025, 05:08

ER

Two cyclists, Alex and Jordan, are cycling around a circular track.

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

29 Apr 2025, 03:37

6

1,784

by: aryanrgupta

31 May 2025, 03:34

ER

In a certain class, some students donated cans of food to a local food

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

24 Jun 2018, 20:55

27

8

20,563

by: bumpbot

31 May 2025, 01:25

ER

A car dealer purchased a car for m percent less than its list price

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

29 May 2025, 00:30

2

4

573

by: Nikkz99

30 May 2025, 23:37

ER

A candle company determines that, for a certain specialty candle, the

555-605 (Medium) | Functions and Custom Characters, Word Problems

555-605 (Medium) | Functions and Custom Characters, Word Problems hide tags

Bunuel

03 Jul 2016, 10:47

147

16

31,638

by: bumpbot

30 May 2025, 22:06

ER

GMAT CLUB OLYMPICS: If x and y are positive integers less than 10, wha

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

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

Bunuel

27 Aug 2021, 08:00

24

4

7,574

by: bumpbot

29 May 2025, 14:34

ER

Three hoses, x, y, and z, each pump water at a constant rate.

505-555 (Easy) | Work and Rate Problems

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

Bunuel

29 May 2025, 00:30

2

3

604

by: Ayeka

29 May 2025, 08:49

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If k and m are positive integers, is 3^(2k) + 7^(4m) divisible by 10 ?

705-805 (Hard) | Exponents, Number Properties

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

Bunuel

28 Jan 2022, 02:30

14

3

2,396

by: bumpbot

28 May 2025, 09:41

ER

If it takes Patrick 4 hours to paint a room, how long did it take

505-555 (Easy) | Work and Rate Problems

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

Bunuel

28 May 2025, 00:30

1

580

by: sachbash14

28 May 2025, 05:08

ER

Peter gifted a packet of chocolates to each of the guests who came to

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

14 May 2020, 08:27

5

3

2,391

by: xyz12345678

28 May 2025, 00:07

ER

Throughout last year, a stylish jacket had a full price of P in certai

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

13 Mar 2024, 01:30

8

3

3,217

by: bumpbot

27 May 2025, 15:01

ER

A florist found that 60% of his customers on Valentine's Day bought

805+ (Hard) | Overlapping Sets

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Bunuel

26 May 2025, 00:30

7

3

851

by: ManifestDreamMBA

27 May 2025, 12:44

ER

Is the positive integer x evenly divisible by at least two integers

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

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

Bunuel

26 Jun 2018, 06:09

5

3

3,251

by: bumpbot

27 May 2025, 11:52

ER

John deposits $1,000 into an account that has an annual interest rate

805+ (Hard) | Percent and Interest Problems

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Bunuel

28 Dec 2023, 02:30

1

1,516

by: APram

27 May 2025, 10:21

ER

If A and B are single digit non-zero numbers, what is the product of A

655-705 (Hard) | Fractions and Ratios

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

Bunuel

28 Jul 2021, 05:00

14

4

3,704

by: bumpbot

27 May 2025, 09:26