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

79,456

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

188,936

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

488,609

by: bb

29 Aug 2025, 13:27

ER

If x is a positive integer, what is the remainder when x is divided by

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

Bunuel

04 Dec 2019, 02:52

33

5

9,793

by: bumpbot

10 Mar 2024, 07:18

ER

If x is a positive integer, is the GCD of x + 3 and x + 5 more than 1?

805+ (Hard) | Multiples and Factors, Number Properties

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

EgmatQuantExpert

10 Mar 2024, 09:12

29

7

5,238

by: Haffun

10 Mar 2024, 08:21

ER

If x^(a - b) = 1, what is the value of x ?

605-655 (Medium) | Exponents

605-655 (Medium) | Exponents hide tags

Bunuel

24 Mar 2015, 04:25

20

7

11,126

by: bumpbot

11 Mar 2024, 13:01

ER

A university awarded grants in the amount of either $7,000 or $10,000

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 Mar 2024, 01:30

5

1,837

by: Shubhradeep

12 Mar 2024, 14:13

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A pair of pants and matching shirt cost $52. What is the cost of the

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Mar 2024, 01:30

3

4

1,414

by: Bunuel

13 Mar 2024, 00:22

ER

Is y^x > x^y? (1) y > x (2) x is a positive number

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

10 Sep 2017, 21:42

20

7

5,280

by: bumpbot

14 Mar 2024, 08:17

ER

The symbol represents one of the following functions: addition

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

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

Bunuel

15 Mar 2024, 01:31

3

2

1,191

by: GMATinsight

16 Mar 2024, 06:25

If n and k are positive integers, is n/k an even integer?

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

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

udaymathapati

02 Sep 2010, 12:46

25

5

16,990

by: bumpbot

17 Mar 2024, 02:28

ER

If x and y are positive integers and xy is divisible by prime number p

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

RichaChampion

12 Sep 2016, 01:32

22

5

9,761

by: bumpbot

17 Mar 2024, 20:14

ER

Of the 1,200 homes in City X that were remodelled last year

555-605 (Medium) | Arithmetic, Word Problems

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

megafan

12 Feb 2013, 08:44

5

4,807

by: bumpbot

18 Mar 2024, 18:41

ER

If a and b are integers, is b > a?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

21 Jan 2021, 01:15

12

7

4,015

by: bumpbot

20 Mar 2024, 23:49

ER

Is x > y? (1) |x| >|y| (2) 1/4 x + 1/3 y > 0

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

GMATbuster92

29 Jul 2018, 08:27

44

5

6,091

by: bumpbot

23 Mar 2024, 09:15

ER

A certain customer at a restaurant calculates his tip by adding a cons

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

07 Sep 2021, 05:27

3

2,512

by: bumpbot

24 Mar 2024, 05:08

ER

What is the value of |x|?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

10 Nov 2014, 07:38

51

9

22,527

by: bumpbot

25 Mar 2024, 21:27

ER

The cost of each bottle of water is the same and the cost of each

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

14 Mar 2024, 01:30

3

2,484

by: Bunuel

25 Mar 2024, 23:45

ER

Does the Set A contain only odd prime numbers? (1) A contains only

505-555 (Easy) | Number Properties, Overlapping Sets

505-555 (Easy) | Number Properties, Overlapping Sets hide tags

Bunuel

26 Mar 2024, 01:30

1

1,006

by: GMATinsight

26 Mar 2024, 02:01

ER

A cyclist travels 20 miles at a speed of 15 miles per hour. If he

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

27 Mar 2024, 01:30

3

2

1,481

by: GMATinsight

27 Mar 2024, 08:37

ER

x and y are positive integers. If the greatest common divisor of 2x

705-805 (Hard) | Multiples and Factors

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

BrentGMATPrepNow

03 Apr 2017, 07:43

43

5

6,692

by: bumpbot

28 Mar 2024, 10:01

ER

How old is Ferdinand? (1) Ferdinand and Kris are the same age.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

28 Mar 2024, 01:30

4

1,111

by: Akkiiii

28 Mar 2024, 11:41

ER

If John deposited 1000$ in a certain bank account, where the interest

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

GMATBusters

29 Sep 2018, 10:37

15

9

4,466

by: Su_bha

28 Mar 2024, 12:12

ER

Is the standard deviation of the scores of students in class X greater

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

29 Mar 2024, 01:30

3

2

1,240

by: poojaarora1818

29 Mar 2024, 11:27

ER

Three robots, Q, R, and L, which eject water independently and

555-605 (Medium) | Work and Rate Problems

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

Bunuel

29 Mar 2024, 01:30

7

2

1,055

by: poojaarora1818

29 Mar 2024, 12:05

ER

A set S contains the following elements: {7, 11, 15, 19, 23, x}. What

605-655 (Medium) | Number Properties, Statistics and Sets Problems

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

Bunuel

14 Feb 2016, 05:41

15

8

11,288

by: bumpbot

31 Mar 2024, 00:59

ER

Is the mean of Set A equal to mean of Set B?

705-805 (Hard) | Statistics and Sets Problems

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

GMATBusters

01 Feb 2020, 19:05

9

3,448

by: bumpbot

01 Apr 2024, 04:22

ER

Sara went to the store and bought both German chocolate bars and Swiss

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Tanishkaa02

29 Mar 2024, 01:48

11

4

2,769

by: vikg007

01 Apr 2024, 07:46

ER

In the figure above, triangle XYZ has side lengths of a, b and c. What

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

BrentGMATPrepNow

22 Oct 2021, 12:47

6

2

3,052

by: bumpbot

04 Apr 2024, 09:02

ER

What is the value of (1/x 1/y)? (1) xy/(x y) = 2 (2) x^2 + y^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

01 Apr 2022, 01:30

4

2

2,728

by: bumpbot

04 Apr 2024, 22:58

ER

If the lengths of the legs of a right triangle are integers, what is

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

gmatt1476

21 Sep 2019, 18:31

58

5

14,258

by: bumpbot

05 Apr 2024, 23:03

ER

If k is a positive integer, what is the hundreds digit of k?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

sillyboy

29 Jan 2017, 23:50

1

5

2,356

by: bumpbot

06 Apr 2024, 04:02

ER

If line M passes through the coordinate system shown above, is the slo

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

30 Aug 2018, 04:49

9

5

5,359

by: bumpbot

06 Apr 2024, 13:19

ER

What is the average of x, y, and z?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

22 May 2016, 13:29

18

4

11,007

by: bumpbot

09 Apr 2024, 02:42

ER

If P and Q are sectors in two different circles such that the area of

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

17 Sep 2018, 22:15

3

4

1,518

by: bumpbot

10 Apr 2024, 01:36

ER

Is r > s ? (1) r represents the probability that it will rain on Tues

655-705 (Hard) | Inequalities, Probability

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

Bunuel

21 Mar 2017, 04:54

28

7

7,369

by: bumpbot

10 Apr 2024, 02:51

ER

What is the value of x (1) x^2 - 5x + 4 = 0 (2) x is not prime

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

info2scs

14 May 2012, 16:52

4

3

11,117

by: bumpbot

10 Apr 2024, 11:29

ER

In the trapezoid above with height x, the sides with measures y and z

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

06 Jun 2017, 11:16

5

3

3,261

by: bumpbot

11 Apr 2024, 02:12

ER

Is quadrilateral ABCD is a parallelogram?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

BrentGMATPrepNow

24 Jan 2018, 15:29

13

3

5,577

by: bumpbot

11 Apr 2024, 02:45

ER

Is the product of two positive integers x and y divisible by 8?

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

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

kiran120680

11 May 2019, 02:03

5

4

3,056

by: bumpbot

11 Apr 2024, 09:35

ER

If x and y are positive integers such that x > y and the least common

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

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

Kritisood

12 Apr 2020, 20:17

8

4

2,147

by: bumpbot

11 Apr 2024, 15:06

ER

How many sides does polygon P have? (1) All sides of P have equal len

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Nanobotstv

18 May 2018, 05:13

32

6

10,585

by: bumpbot

11 Apr 2024, 20:58

ER

12 Days of Christmas GMAT Competition - Day 10: Is m+10 positive?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

23 Dec 2021, 07:00

11

6

4,134

by: bumpbot

12 Apr 2024, 11:04

ER

Principal of a school recorded the number of students in each of 15 cl

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

25 Oct 2018, 02:22

4

7

2,703

by: bumpbot

12 Apr 2024, 18:27

ER

If x is an integer, is 72/x an integer?

555-605 (Medium) | Multiples and Factors

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

Bunuel

21 Aug 2016, 04:10

4

3

5,066

by: bumpbot

13 Apr 2024, 03:52

ER

If Q is a positive integer, is 300 a factor of Q?

655-705 (Hard) | Multiples and Factors

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

Bunuel

09 Mar 2020, 03:04

22

3

5,966

by: bumpbot

13 Apr 2024, 04:15

ER

If x, y and z are integers and xyz is divisible by 8, is x e

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

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

enigma123

29 Jun 2011, 13:24

45

11

10,451

by: bumpbot

13 Apr 2024, 05:42

ER

If a^n ≠ 0 and n is a positive integer, is n odd?

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

jellybean23

20 Oct 2013, 04:43

17

4

4,996

by: bumpbot

13 Apr 2024, 13:01

ER

Consider an integer x=251n9 where n represents the tens digit of x, wh

555-605 (Medium) | Multiples and Factors

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

stonecold

04 Nov 2016, 09:35

12

3

4,760

by: bumpbot

13 Apr 2024, 21:42

ER

If n is a positive integer, are n and 1 the only positive divisors of

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

GMATBusters

06 Dec 2018, 06:36

8

4

9,092

by: bumpbot

13 Apr 2024, 23:29

ER

If (x+y)^2 = (x+y^2)^2, what is the value of y?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

07 Nov 2019, 03:15

17

5

5,778

by: bumpbot

14 Apr 2024, 04:07

ER

If 3 years ago Jennifer was 22 years old, how old is Carmen now?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

20 Mar 2016, 23:42

7

4

6,727

by: bumpbot

14 Apr 2024, 07:31

ER

What is the hundredths digit in the decimal expression of r/55?

705-805 (Hard) | Multiples and Factors

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

Bunuel

14 Jan 2018, 06:28

16

3

2,444

by: Bunuel

14 Apr 2024, 11:01