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

78,822

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

856

24

188,582

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

488,017

by: bb

29 Aug 2025, 13:27

ER

A number of apples and oranges are to be distributed evenly among a nu

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

23 Mar 2022, 01:30

14

5

7,958

by: bumpbot

01 Jan 2026, 02:25

ER

If x y, and y = (x^2 - y^2)/(x-y), then what is the value of y ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

kenman

16 Oct 2011, 04:07

14

2

6,520

by: WiziusCareers1

26 Dec 2025, 22:06

ER

If x and y are positive integers, is x^16 - y^8 + 345y^2 div

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

thanatoz

29 Apr 2010, 00:29

14

5

12,077

by: bumpbot

25 Dec 2025, 22:11

ER

ab + cd = efg

655-705 (Hard) | Algebra, Number Properties

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

PrepTap

04 May 2015, 05:46

14

6

6,083

by: bumpbot

25 Dec 2025, 07:42

ER

At a certain fiorist shop, roses can be purchased either individually

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

11 Aug 2021, 08:30

14

4

3,791

by: Annukiran

17 Dec 2025, 02:23

ER

A bookstore bought 24 books, each at an equal price. Each of the first

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

06 Sep 2024, 01:30

14

4

2,323

by: bumpbot

16 Dec 2025, 22:49

ER

If X is a positive integer, is X a perfect square?

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

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

StringArgs

02 Jul 2022, 23:26

14

4

4,580

by: bumpbot

09 Dec 2025, 07:44

ER

A certain salesperson earns a total sales commission of d dollars for

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

GMATNinja

13 Feb 2024, 01:15

14

4

2,753

by: bumpbot

06 Dec 2025, 01:00

ER

If z and x are integers with absolute values greater than 1, is z^x

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

09 Feb 2016, 09:54

14

8

5,843

by: bumpbot

04 Dec 2025, 02:33

Mike bought 10 pens, all having distinct prices in integer number of

705-805 (Hard) | Statistics and Sets Problems

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

amanvermagmat

06 Aug 2018, 11:20

14

4

2,916

by: bumpbot

30 Nov 2025, 05:47

ER

Anthony can purchase bagels at $1.99 for a specialty bagel and $15.99

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

BillyZ

15 Feb 2017, 22:17

14

7

4,368

by: bumpbot

27 Nov 2025, 08:49

ER

If r and s are integers, is r divisible by 7?

Sub 505 (Easy) | Multiples and Factors, Number Properties

Sub 505 (Easy) | Multiples and Factors, Number Properties hide tags

monty6000

10 Jul 2014, 01:52

14

5

15,466

by: bumpbot

20 Nov 2025, 02:12

ER

Set S of Cardinality of 7 has distinct elements. Is the probability of

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Tan2017

08 May 2017, 09:15

14

3

3,985

by: bumpbot

26 Oct 2025, 01:23

ER

Brian drives a certain part of his journey at an average speed of 30

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

Bunuel

23 Mar 2023, 03:30

14

2

2,869

by: bumpbot

25 Oct 2025, 08:56

ER

In the figure above, what is the length of AD?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

22 Dec 2014, 08:56

14

11

17,420

by: bumpbot

22 Oct 2025, 06:45

ER

What is the value of x^2 - 6x + 12? (1) (x - 2)(x - 4) = 0 (2) 7x - 3

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

06 May 2020, 21:34

14

9

5,748

by: bumpbot

16 Oct 2025, 12:21

ER

A class consists of boys and girls only. On a final exam in physics

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

03 Jun 2018, 11:15

14

4

2,871

by: pappal

09 Oct 2025, 11:01

ER

The price of a share of a certain company went up by x% on Monday and

705-805 (Hard) | Percent and Interest Problems

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

Bunuel

30 Aug 2024, 01:30

14

5

1,590

by: Bunuel

09 Oct 2025, 09:43

ER

130 passengers flying on a plane have stored a total of 250 pieces of

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

MT1302

21 Mar 2024, 08:37

14

5

4,255

by: bumpbot

06 Oct 2025, 12:05

A shop sells all kinds of school lab equipment. One school's admin

705-805 (Hard) | Min-Max Problems, Word Problems

705-805 (Hard) | Min-Max Problems, Word Problems hide tags

amanvermagmat

08 Dec 2018, 22:34

14

4

3,230

by: bumpbot

02 Oct 2025, 22:08

ER

Points x and y lie on a line segment. How many units long is the line

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

26 Nov 2021, 01:00

14

5

3,965

by: bumpbot

02 Oct 2025, 01:04

ER

Find the Median of the set of integers A? 1) Mean of the set A is 10

655-705 (Hard) | Statistics and Sets Problems

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

GMATinsight

22 May 2017, 08:26

14

5

2,750

by: bumpbot

30 Sep 2025, 10:20

ER

Each of the 120 students in a certain dormitory is either a junior or

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

parkhydel

28 Apr 2020, 04:26

14

2

9,105

by: bumpbot

30 Sep 2025, 08:27

ER

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

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

01 Apr 2020, 02:30

14

9

4,117

by: bumpbot

18 Sep 2025, 08:13

ER

If x ≤ 4 and y ≥ 10, what is the range of the numbers in the set {5, 8

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

22 Dec 2015, 03:18

14

8

6,447

by: bumpbot

17 Sep 2025, 21:50

ER

What is the units digit of the non-negative integer y?

705-805 (Hard) | Fractions and Ratios, Number Properties

705-805 (Hard) | Fractions and Ratios, Number Properties hide tags

Bunuel

25 Nov 2014, 08:30

14

11

5,295

by: bumpbot

15 Sep 2025, 16:13

ER

If a is a positive integer, is a^2 a multiple of 8 ?

655-705 (Hard) | Multiples and Factors

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

Bunuel

06 Apr 2022, 07:00

14

3

2,700

by: bumpbot

12 Sep 2025, 05:28

ER

If a and b are non negative integers, what is remainder when 11^a/b

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

RMD007

21 Jan 2017, 22:06

14

4

3,504

by: bumpbot

11 Sep 2025, 05:33

ER

In a convenience store in a certain year, the average (arithmetic mean

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

14 Mar 2018, 01:27

14

4

3,553

by: bumpbot

25 Aug 2025, 11:38

ER

The integers x and y are positive, x > y + 8, and y > 8.

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

10 Nov 2021, 09:00

14

3

3,925

by: bumpbot

21 Aug 2025, 07:36

How many even integers lie between numbers N1 and N2? (1) N2 = 15 +

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

amanvermagmat

13 Jul 2018, 11:09

14

8

3,608

by: Harsh07112001

21 Aug 2025, 04:32

ER

What is the average speed of the car during its entire trip?

655-705 (Hard) | Distance and Speed Problems

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

AweSome777

10 Jul 2019, 07:25

14

10

6,471

by: bumpbot

15 Aug 2025, 21:36

ER

What is the greatest common divisor of two positive integers a and b?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

chetan2u

20 Jan 2015, 12:59

14

5

5,782

by: bumpbot

11 Aug 2025, 17:11

ER

K is a data set containing five real numbers. If A is the arithmetic

805+ (Hard) | Statistics and Sets Problems

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

Raksat

07 Aug 2018, 10:22

14

5

2,412

by: srik410

27 Jul 2025, 05:20

ER

Is x < y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Puneethrao

01 Nov 2013, 01:01

14

8

6,278

by: bumpbot

20 Jul 2025, 19:19

ER

Does 4^a = 4^-a + b? (1) 16^a = 1 + ((2^2a) / (b^-1)) (2) a

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

rjkaufman21

14 Sep 2011, 10:31

14

10

5,882

by: bumpbot

19 Jul 2025, 18:13

ER

All geologists must pass a written test and a field test to become lic

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

15 Oct 2019, 02:40

14

5

5,242

by: bumpbot

17 Jul 2025, 12:34

ER

What is the greatest integer factor of x if both x and y are integers?

655-705 (Hard) | Multiples and Factors

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

Bunuel

31 Jul 2018, 22:02

14

6

5,311

by: bumpbot

16 Jul 2025, 11:18

ER

For any positive number n, the function #n represents the value of the

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

Bunuel

20 Jan 2022, 02:30

14

4

4,418

by: bumpbot

07 Jul 2025, 04:08

ER

X and Y are sets of positive integers. Is the greatest integer in X gr

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

anairamitch1804

09 Feb 2017, 11:40

14

6

10,215

by: bumpbot

02 Jul 2025, 13:58

ER

At a company with 300 employees who work either in the office or in

805+ (Hard) | Min-Max Problems, Overlapping Sets

805+ (Hard) | Min-Max Problems, Overlapping Sets hide tags

MartyMurray

07 Mar 2026, 09:21

14

1

1,198

by: gmatophobia

29 Jun 2025, 07:28

ER

If x 0, is -4/x^3 negative?

Sub 505 (Easy) | Exponents, Inequalities

Sub 505 (Easy) | Exponents, Inequalities hide tags

RSOHAL

21 Dec 2015, 09:15

14

6

8,779

by: bumpbot

23 Jun 2025, 12:58

ER

Is it possible for an artist to be imitative and profoundly creative?

505-555 (Easy) | Non-Math Related

505-555 (Easy) | Non-Math Related hide tags

Bunuel

15 Jan 2024, 06:00

14

2

3,105

by: bumpbot

21 Jun 2025, 03:07

ER

A bag of coins contains only nickels, dimes, and quarters. There are 3

605-655 (Medium) | Algebra, Word Problems

605-655 (Medium) | Algebra, Word Problems hide tags

Bunuel

20 Dec 2018, 02:20

14

3

7,852

by: bumpbot

20 Jun 2025, 22:43

ER

Peter went to the store to buy paint. Small cans cost $30 and larger

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

mikemcgarry

19 Dec 2013, 11:03

14

8

10,130

by: bumpbot

18 Jun 2025, 11:26

ER

Is line y=kx+b tangent to circle x^2+y^2=1?

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

smyarga

07 Apr 2020, 06:27

14

4

2,429

by: bumpbot

17 Jun 2025, 14:30

ER

The students of a class are to be arranged in rows, starting from numb

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

19 May 2020, 02:23

14

8

6,616

by: PietroCavallo

15 Jun 2025, 07:36

ER

For any integers a and b, min(a, b) and max(a, b) denote the minimum a

705-805 (Hard) | Functions and Custom Characters, Number Properties

705-805 (Hard) | Functions and Custom Characters, Number Properties hide tags

Bunuel

12 Sep 2017, 23:29

14

6

5,365

by: bumpbot

14 Jun 2025, 06:32

ER

P and Q are positive numbers, is P/Q > 1

705-805 (Hard) | Inequalities, Number Properties

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

shameekv1989

23 Apr 2020, 16:45

14

5

3,417

by: Redmaster2

10 Jun 2025, 13:03

ER

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

7,930

by: bumpbot

04 Jun 2025, 15:05