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

79,195

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

188,806

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

488,421

by: bb

29 Aug 2025, 13:27

ER

X, Y and Z were the only candidates in a certain election. If Y and Z

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

03 Jun 2024, 01:30

5

3

1,119

by: Rucha.Shukla

03 Jun 2024, 04:14

ER

What is the positive integer n?

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

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

enigma123

12 Jun 2013, 03:15

59

7

15,098

by: bumpbot

03 Jun 2024, 11:51

ER

After 360 liters of fuel were added to a container, the amount of fuel

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 Oct 2019, 02:09

6

4

3,842

by: bumpbot

03 Jun 2024, 19:19

ER

M=24.abc. When M is rounded to the nearest hundredths digit, it become

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

happypuppy

03 Jan 2022, 07:02

3

1,517

by: bumpbot

03 Jun 2024, 20:23

ER

What is a–b? (1) a^3 – b^3 = 117 (2) a^2 + ab + b^2 = 39

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

08 Oct 2017, 06:32

9

5

4,550

by: bumpbot

04 Jun 2024, 02:28

ER

If the positive integer N has only three prime factors 2, 3, and 5

655-705 (Hard) | Multiples and Factors

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

Bunuel

30 Jan 2023, 12:15

3

1,640

by: Bunuel

04 Jun 2024, 10:09

ER

Is the integer P odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

jrzayev001

17 Oct 2013, 02:31

27

8

14,375

by: bumpbot

04 Jun 2024, 11:01

ER

The tax Jim paid on a shipment of Cognac brandy bottles was $1 for the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

23 Jun 2021, 04:00

2

4

1,814

by: bumpbot

04 Jun 2024, 11:30

ER

If a, b, c and d are integers, is (2^a·3^b)/(2^c·3^d) even ?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

03 Mar 2023, 02:30

8

5

1,713

by: bumpbot

04 Jun 2024, 12:30

ER

Companies X and Y are direct competitors in the ecommerce business.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

04 Jun 2024, 01:30

9

4

1,663

by: a191291r

05 Jun 2024, 00:24

ER

Jamie purchased three items from a budget store. She received discount

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

05 Jun 2024, 01:30

3

2

1,200

by: Nidzo

05 Jun 2024, 05:57

ER

Jacks school has a hallway with 100 lockers numbered 1100. How many

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

05 Jun 2024, 01:30

4

3

984

by: PranavVyas

05 Jun 2024, 08:22

ER

A certain investment earned a fixed rate of 20 percent interest per

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

05 Jun 2024, 01:05

3

1

2,234

by: pappal

05 Jun 2024, 11:37

ER

What is the distance between x and y on the number line?

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

calreg11

25 Mar 2012, 18:30

41

15

19,564

by: bumpbot

06 Jun 2024, 00:21

ER

If z 0, is x = y ? (1) xy = -1/|z| (2) x/y = -z^2

605-655 (Medium) | Absolute Values, Number Properties

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

Bunuel

18 Jul 2018, 02:37

23

8

5,425

by: bumpbot

06 Jun 2024, 00:23

ER

n and k are positive integers, and when n is divided by k²

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

BrentGMATPrepNow

01 Nov 2016, 11:30

21

6

6,365

by: Bunuel

06 Jun 2024, 00:32

ER

If A and B are single digits and their sum is a multiple of 5, what is

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

chetan2u

19 Jul 2020, 22:43

8

1,773

by: bumpbot

06 Jun 2024, 09:24

ER

What is the value of x?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

27 Dec 2015, 10:36

6

5

4,246

by: reed990

06 Jun 2024, 14:29

ER

If A and B run a race, then A wins by 60 seconds. If B and C run the

705-805 (Hard) | Distance and Speed Problems

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

Bunuel

06 Jun 2024, 01:30

9

2

2,364

by: prantorboni

06 Jun 2024, 14:34

ER

A box contains only white balls, red balls and green balls. What is th

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

30 Mar 2015, 05:44

18

9

13,890

by: bumpbot

06 Jun 2024, 20:35

ER

If m and n are positive integers, is n a multiple of 24?

555-605 (Medium) | Multiples and Factors

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

Bunuel

01 Sep 2021, 09:00

7

3,853

by: bumpbot

07 Jun 2024, 02:29

ER

An infinite sequence of positive integers is called a "beta

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

manishuol

01 May 2013, 10:08

42

7

10,565

by: bumpbot

07 Jun 2024, 02:29

ER

If n is a positive integer, what is the value of n?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

30 Jul 2017, 22:47

19

7

3,955

by: bumpbot

07 Jun 2024, 04:55

ER

Is 48 divisible by a? (1) a is divisible by 9 (2) a is multiple of 16

655-705 (Hard) | Arithmetic +2 tags

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

chetan2u

28 Oct 2019, 05:13

6

4

2,657

by: bumpbot

07 Jun 2024, 05:05

ER

For any integer n greater than 1, factorial denotes the product of all

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

EgmatQuantExpert

10 Mar 2024, 10:33

100

6

16,765

by: bumpbot

07 Jun 2024, 06:46

ER

Of the students in a class, 90% had taken a course in writing, or math

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

07 Jun 2024, 01:30

3

2

1,243

by: prantorboni

07 Jun 2024, 11:34

ER

Of the people who attended a conference, some are professors and some

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

07 Jun 2024, 01:30

3

4

1,455

by: prantorboni

07 Jun 2024, 13:16

ER

What is the median of five numbers? (1) The three smallest numbers

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

26 Jan 2024, 02:30

1

2

1,660

by: MBhavya

08 Jun 2024, 06:02

ER

If a, b, and c are positive numbers, what is the value of a + b + c ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

31 Dec 2022, 03:40

5

2

1,775

by: bumpbot

08 Jun 2024, 06:59

ER

A function f is defined by f(x,y) = x^2 - y. Is the value of

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

darlingriyarai

04 Apr 2019, 23:03

40

6

8,305

by: bumpbot

08 Jun 2024, 12:04

ER

Is x = -4 ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

nevilpat1

15 Sep 2014, 11:25

6

8

5,180

by: bumpbot

08 Jun 2024, 21:26

ER

If rt ≠ 0, is qt > sr? (1) q/r < s/t (2) rt < 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

anooo31

02 May 2018, 23:29

25

8

4,318

by: bumpbot

08 Jun 2024, 23:12

ER

If a, b, and c are positive distinct integers, is (a/b)/c an

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

bibha

08 Nov 2012, 03:18

38

6

14,156

by: bumpbot

08 Jun 2024, 23:43

Two functions g(y) and h(y, z) are defined for all 4-digit integers

655-705 (Hard) | Functions and Custom Characters, Multiples and Factors

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

ChandlerBong

02 Jun 2023, 08:34

4

3

1,747

by: bumpbot

08 Jun 2024, 23:54

ER

If yz not equal 0, what is the value of 12x/(yz)?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

NYCgirl15

24 Apr 2015, 02:31

3

4

4,055

by: bumpbot

09 Jun 2024, 18:49

ER

What is the value of x^2 - 4y^2?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

derekgmat

08 Nov 2012, 03:13

5

4

5,066

by: bumpbot

09 Jun 2024, 19:32

ER

2x – y =

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

vikasp99

06 Mar 2017, 05:08

2

10

3,418

by: bumpbot

09 Jun 2024, 19:35

ER

Bill took 4 math tests, and each test received a score out of 100. Wha

555-605 (Medium) | Statistics and Sets Problems, Word Problems

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

Bunuel

23 Jul 2018, 03:17

6

8,185

by: bumpbot

10 Jun 2024, 01:04

ER

If |ab| ≠ ab, is a > b? (1) |a| > b^3 (2) a^2 < b

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

DHAR

03 Aug 2017, 09:26

16

9

5,679

by: bumpbot

10 Jun 2024, 05:23

ER

If a 0, is b < a < c ? (1) b < |a| < c (2) |b| < |a| < |c|

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

03 Feb 2020, 05:01

5

3

3,893

by: bumpbot

10 Jun 2024, 05:24

ER

If f(x) = 100 - x^2, is f(a) > f(b)? (1) a^2 > b^2 (2) a/b > 1

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Functions and Custom Characters, Inequalities hide tags

kiran120680

06 Mar 2019, 21:34

29

12

8,155

by: bumpbot

10 Jun 2024, 05:24

ER

If 3a + 2b – 4 = a – b, what is the value of b ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Gnpth

23 Jul 2014, 10:48

4

6

9,303

by: bumpbot

10 Jun 2024, 22:01

ER

What is the value of a?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

HustleHarder

31 Aug 2010, 14:46

4

7

4,365

by: bumpbot

10 Jun 2024, 22:06

ER

What is the value of (4x-y)*1/(3y)?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

macjas

27 May 2012, 09:13

3

4,729

by: bumpbot

10 Jun 2024, 22:13

ER

Is the distance between Borga and Kosver less than 140 Miles?

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

11 Jun 2024, 01:30

2

938

by: Purnank

11 Jun 2024, 03:32

ER

What is the value of y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

JJ2014

15 Dec 2012, 11:33

23

5

7,293

by: bumpbot

11 Jun 2024, 03:47

ER

If x ≠0, then what is the value of (|x|)/x ?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

EgmatQuantExpert

07 Aug 2018, 01:30

49

16

15,541

by: bumpbot

11 Jun 2024, 10:47

ER

How many of the boys in a group of 100 children have brown hair? (1) O

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

30 Jul 2015, 10:38

19

7

14,739

by: bumpbot

12 Jun 2024, 02:18

ER

Paul jogs at a constant rate for 80 minutes along the same route every

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

12 Jun 2024, 01:30

4

2

1,904

by: Purnank

12 Jun 2024, 02:59

ER

If list Q contains more than two numbers, are all the numbers in Q equ

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

14 Jul 2020, 01:43

12

8

3,337

by: bumpbot

12 Jun 2024, 03:09