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

183

15

83,636

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,716

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

491,678

by: bb

29 Aug 2025, 13:27

ER

2x – y =

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

vikasp99

06 Mar 2017, 05:08

2

10

3,448

by: bumpbot

09 Jun 2024, 19:35

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

5,110

by: bumpbot

09 Jun 2024, 19:32

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

4,081

by: bumpbot

09 Jun 2024, 18:49

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

1,773

by: bumpbot

08 Jun 2024, 23:54

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

14,223

by: bumpbot

08 Jun 2024, 23:43

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

4,348

by: bumpbot

08 Jun 2024, 23:12

ER

Is x = -4 ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

nevilpat1

15 Sep 2014, 11:25

6

8

5,216

by: bumpbot

08 Jun 2024, 21:26

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

8,340

by: bumpbot

08 Jun 2024, 12:04

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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

1,806

by: bumpbot

08 Jun 2024, 06:59

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

1,716

by: MBhavya

08 Jun 2024, 06:02

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

1,492

by: prantorboni

07 Jun 2024, 13:16

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

1,269

by: prantorboni

07 Jun 2024, 11:34

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

16,802

by: bumpbot

07 Jun 2024, 06:46

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

2,691

by: bumpbot

07 Jun 2024, 05:05

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

3,990

by: bumpbot

07 Jun 2024, 04:55

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

10,627

by: bumpbot

07 Jun 2024, 02:29

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

3,874

by: bumpbot

07 Jun 2024, 02:29

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

13,947

by: bumpbot

06 Jun 2024, 20:35

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

4,276

by: reed990

06 Jun 2024, 14:29

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

1,796

by: bumpbot

06 Jun 2024, 09:24

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

6,410

by: Bunuel

06 Jun 2024, 00:32

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

5,463

by: bumpbot

06 Jun 2024, 00:23

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

19,614

by: bumpbot

06 Jun 2024, 00:21

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

2,276

by: pappal

05 Jun 2024, 11:37

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

1,011

by: PranavVyas

05 Jun 2024, 08:22

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

1,227

by: Nidzo

05 Jun 2024, 05:57

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

1,692

by: a191291r

05 Jun 2024, 00:24

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

1,755

by: bumpbot

04 Jun 2024, 12:30

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

1,834

by: bumpbot

04 Jun 2024, 11:30

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

14,462

by: bumpbot

04 Jun 2024, 11:01

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

1,666

by: Bunuel

04 Jun 2024, 10:09

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

4,577

by: bumpbot

04 Jun 2024, 02:28

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

1,541

by: bumpbot

03 Jun 2024, 20:23

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

3,884

by: bumpbot

03 Jun 2024, 19:19

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

60

7

15,162

by: bumpbot

03 Jun 2024, 11:51

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

1,142

by: Rucha.Shukla

03 Jun 2024, 04:14

ER

The only contents of a bag of candy are 100 jelly beans and 10

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

03 Jun 2024, 01:30

3

2

1,105

by: Purnank

03 Jun 2024, 02:22

ER

What is the value of (x + y)^2 (1) x^2 + xy = 3 (2) y^2 + yx = 5

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

21 Jan 2020, 04:29

7

2

3,813

by: bumpbot

03 Jun 2024, 00:20

ER

Of the 25 people in Tom's apartment building, what is the ratio of peo

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

24 May 2022, 09:39

9

3

2,473

by: bumpbot

02 Jun 2024, 23:05

ER

What is the standard deviation of the set A? 1) Mean of the set A is

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

GMATinsight

22 May 2017, 08:14

6

3

3,693

by: sayan640

02 Jun 2024, 22:10

ER

The population of the town of Paxton continuously increased in the two

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

06 May 2024, 01:30

4

1,107

by: yazadsarkari

02 Jun 2024, 19:43

ER

What is the Median of the set A? 1) Mean of the set A is 10 2) Range

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

GMATinsight

22 May 2017, 08:19

3

5

2,355

by: sayan640

02 Jun 2024, 18:28

ER

The table above shows the results of a survey of 100 customers of a pa

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

16 Aug 2019, 02:27

19

6

4,613

by: ashdank94

02 Jun 2024, 15:54

ER

If x^2y=z^3, is z^3 > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Mbawarrior01

18 Nov 2016, 00:07

76

12

27,256

by: Bunuel

02 Jun 2024, 13:37

ER

If x and y are positive integers, what is the ratio of x to y?

705-805 (Hard) | Fractions and Ratios

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

QuantMadeEasy

12 Oct 2024, 05:24

8

3

3,852

by: bumpbot

02 Jun 2024, 10:05

ER

If a, b, and c are positive integers, is (a/b)^c > 1?

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

01 May 2019, 23:32

4

2,593

by: bumpbot

02 Jun 2024, 00:52

ER

If (ax + by)^2 = (bx + ay)^2, what is the value of a b ?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Bunuel

20 Nov 2022, 13:00

14

6

3,131

by: Bunuel

01 Jun 2024, 12:34

ER

If p, q and r and integers, and pqr/4 is an odd integer, is p an even

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

ShankSouljaBoi

30 Oct 2020, 21:50

11

5

3,655

by: bumpbot

01 Jun 2024, 04:13

ER

On Sunday morning, a printing press printed its newspapers at a consta

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

06 Oct 2014, 04:22

9

8

17,168

by: bumpbot

31 May 2024, 23:13

ER

If 0 < x < 1, what is the hundredths digit of x? 1) The thousandths

555-605 (Medium) | Fractions and Ratios, Number Properties

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

Russ19

17 Feb 2021, 06:37

6

2

1,576

by: bumpbot

31 May 2024, 18:22