GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

79,412

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

858

24

188,924

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

488,595

by: bb

29 Aug 2025, 13:27

ER

A tourist has travelers checks in $20 and $100 denominations. How man

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Apr 2022, 02:00

3

5

1,997

by: bumpbot

23 Jun 2024, 05:28

ER

What is the units digit of the product of m! and n!?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

02 May 2016, 22:20

2

2,054

by: bumpbot

24 Jun 2024, 04:43

ER

Development planners detemined the number of new housing units needed

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

erikvm

23 Jun 2015, 11:49

45

5

16,546

by: bumpbot

25 Jun 2024, 02:24

ER

If x and z are integers, is x + z^2 odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

gmatt1476

21 Sep 2019, 19:06

12

3

8,246

by: bumpbot

26 Jun 2024, 03:52

ER

Is Sam older than Mike?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

AKKAMI-

26 Jun 2024, 09:26

1

1,644

by: Bunuel

26 Jun 2024, 09:36

ER

The average (arithmetic mean) of three positive integers

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

29 Jun 2022, 01:30

4

2,435

by: bumpbot

27 Jun 2024, 05:27

ER

Byrne and some of his friends go out to dinner and spend $111, excludi

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

chand567

17 Nov 2018, 02:12

10

4

3,145

by: bumpbot

27 Jun 2024, 12:33

ER

If x is a 7-digit positive integer, what is the thousandths digit of

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

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

kiran120680

01 May 2019, 09:21

21

4

6,123

by: bumpbot

28 Jun 2024, 09:09

ER

If x ≠ y, what is the value of x + y?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

flower07

13 Dec 2013, 06:49

6

2

2,836

by: bumpbot

28 Jun 2024, 15:02

ER

If x is a two-digit odd integer, what is the value of x?

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

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

GMATNinja

18 Apr 2022, 05:49

8

6

3,617

by: bumpbot

28 Jun 2024, 15:28

ER

If x^2 is a positive integer, is x a positive integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

15 Jan 2020, 00:14

27

11

8,146

by: Bunuel

29 Jun 2024, 03:01

ER

If n is a positive integer, does n have four or more distinct factors?

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

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

Bunuel

02 Mar 2022, 08:30

18

5

4,246

by: bumpbot

29 Jun 2024, 15:36

ER

Is x an integer? (1) x^2 is an integer (2) 2*x is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

QuantMadeEasy

12 Feb 2020, 00:14

5

2

2,028

by: bumpbot

30 Jun 2024, 00:52

ER

What is the number of positive integers that divide k^2 but do not div

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

31 Jan 2022, 02:30

12

3

2,625

by: salilbagai

30 Jun 2024, 11:30

ER

If k is a positive integer and m is the product of the first 40 positi

605-655 (Medium) | Exponents +2 tags

605-655 (Medium) | Exponents, Multiples and Factors, Number Properties hide tags

Bunuel

10 Jul 2018, 21:37

20

12

4,558

by: bumpbot

30 Jun 2024, 22:59

ER

Is n the square of an integer?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

GMATinsight

19 Jan 2016, 09:38

16

5

5,055

by: bumpbot

01 Jul 2024, 06:03

ER

What is the value of n? (1) n(n - 1)(n - 2 ) = 0 (2) n^2 + n - 6 = 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

16 May 2018, 06:51

6

3

4,975

by: bumpbot

01 Jul 2024, 11:55

ER

If a, b and c are integers, is (a·b) a multiple of 18?

655-705 (Hard) | Multiples and Factors

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

Bunuel

12 Mar 2021, 01:15

18

5

5,853

by: bumpbot

01 Jul 2024, 20:15

ER

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

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

ThomasR22

15 Sep 2020, 07:30

16

3

6,952

by: bumpbot

02 Jul 2024, 03:43

ER

It is well known that the relationship between the revenue from sales

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

haardiksharma

04 Jul 2017, 03:23

15

4

3,632

by: bumpbot

02 Jul 2024, 04:38

ER

A author writes in his book : "I was born in year (x^2 + 4x + 4 ) and

705-805 (Hard) | Algebra, Arithmetic

705-805 (Hard) | Algebra, Arithmetic hide tags

maliyeci

04 Sep 2016, 04:45

14

6

3,590

by: bumpbot

02 Jul 2024, 07:45

ER

What is the percent profit made on selling an article?

605-655 (Medium) | Percent and Interest Problems

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

Bunuel

03 Jul 2017, 04:57

10

4

4,372

by: bumpbot

02 Jul 2024, 18:15

ER

Students in a class are arranged to form groups of 4 members each.

705-805 (Hard) | Number Properties, Remainders

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

Bunuel

08 May 2024, 01:30

11

5

1,868

by: samarpan.g28

03 Jul 2024, 09:07

ER

Is |N| < 5 ? (1) |N 1| < 4 (2) |N + 1| < 6

605-655 (Medium) | Absolute Values, Inequalities

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

Bunuel

25 Oct 2022, 12:45

9

3

2,106

by: bumpbot

03 Jul 2024, 23:01

ER

If x is a two-digit prime number whose digits are the reverse of the

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

GMAT888

21 Dec 2014, 13:17

44

4

17,168

by: bumpbot

03 Jul 2024, 23:46

ER

If x and y are positive integers, is 2x a multiple of y? (1) x is a mu

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

25 Nov 2014, 08:31

7

9

4,458

by: bumpbot

05 Jul 2024, 08:49

ER

Is a three-digit number xyz divisible by 7?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

vad3tha

21 Aug 2014, 01:42

23

6

6,644

by: bumpbot

05 Jul 2024, 12:25

ER

if a, b, c, and d are points on the number line such that a > b, what

Sub 505 (Easy) | Coordinate Plane +2 tags

Sub 505 (Easy) | Coordinate Plane, Fractions and Ratios, Number Properties hide tags

Hoozan

14 Feb 2021, 02:01

9

2

4,762

by: bumpbot

05 Jul 2024, 21:14

ER

The symbol represents one of the operations: addition, subtraction

Poor Quality

Poor Quality hide tags

Bunuel

02 Feb 2024, 02:30

3

4

1,828

by: Bunuel

06 Jul 2024, 05:20

ER

If n is 2-digit positive integer, n=? (1) n is the product of 6 prime

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Zed3092

23 Nov 2018, 00:42

8

6

2,318

by: bumpbot

06 Jul 2024, 10:45

ER

If a and b are non zero integers is ab/(a + b) < ab?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

aarish2102

11 Jul 2022, 07:09

7

6

3,768

by: saurabhbajpai

08 Jul 2024, 11:28

ER

What is the value of x^5? (1) x^2 = 9 (2) x^3 >9

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

03 Sep 2019, 23:01

7

12

4,522

by: bumpbot

08 Jul 2024, 17:04

ER

GMAT Club Olympics 2024 (Day 1): Last week, Edmon had lunch in two

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

08 Jul 2024, 07:00

19

5

6,985

by: DG1989

09 Jul 2024, 04:41

ER

GMAT Club Olympics 2024 (Day 2): Out of 45 chefs judging desserts, 25

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

09 Jul 2024, 07:00

17

7

5,855

by: OmerKor

10 Jul 2024, 00:51

ER

An unknown number of coins have been scattered on a table.

805+ (Hard) | Percent and Interest Problems

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

AnthonyUnique

19 Jun 2019, 02:50

14

4

2,249

by: bumpbot

10 Jul 2024, 07:57

ER

A certain electronics store purchased 500 tablets for $150 each.

605-655 (Medium) | Algebra, Percent and Interest Problems

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

gmat1393

26 Feb 2019, 19:46

13

3

3,101

by: bumpbot

10 Jul 2024, 13:14

ER

Set S consists of 20 different positive integers. How many

505-555 (Easy) | Statistics and Sets Problems

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

axl169

10 Oct 2006, 09:04

22

9

15,191

by: bumpbot

10 Jul 2024, 22:29

ER

A and B are running in opposite direction on a circular track

555-605 (Medium) | Distance and Speed Problems

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

GMATbuster92

20 Jul 2018, 11:56

10

3

5,671

by: bumpbot

11 Jul 2024, 01:37

ER

In the problem below, AB, CD, and EF are two-digit numbers, where A, B

805+ (Hard) | Arithmetic, Number Properties

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

vishnugmatgupta

21 Nov 2021, 02:35

10

4

2,421

by: bumpbot

12 Jul 2024, 12:34

ER

If the elevation above water level of a breaching whale is given by th

705-805 (Hard) | Algebra +2 tags

705-805 (Hard) | Algebra, Inequalities, Word Problems hide tags

Bunuel

09 Feb 2017, 03:15

20

5

5,767

by: bumpbot

12 Jul 2024, 14:04

ER

If 2x + 3y = 5, what is the value of x ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

jlgdr

01 Oct 2013, 15:25

5

3

10,910

by: bumpbot

13 Jul 2024, 01:39

ER

GMAT Club Olympics 2024 (Day 5): What is the median age of athletes

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

12 Jul 2024, 07:00

13

9

6,152

by: anish0953

13 Jul 2024, 05:16

ER

O is the center of the circle. Does point B lie inside the circle?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Hoozan

14 Feb 2021, 05:48

6

2

3,443

by: bumpbot

14 Jul 2024, 00:12

ER

x is a prime number and y is a positive integer. If x and y have only

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

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

kiran120680

06 Jun 2019, 09:28

33

2

6,009

by: bumpbot

14 Jul 2024, 04:41

ER

If a = 2,879 + b, what is the value of the digit b?

705-805 (Hard) | Multiples and Factors

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

Bunuel

09 Jul 2018, 00:50

9

2,174

by: bumpbot

14 Jul 2024, 06:44

ER

If M and N are positive integers, is (MN)/15 an integer

655-705 (Hard) | Multiples and Factors

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

Bunuel

13 Mar 2020, 01:48

23

6

6,819

by: bumpbot

15 Jul 2024, 06:43

ER

If z is an integer greater than 1, is z even? (1) 2z is not a factor

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

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

Bunuel

26 May 2022, 03:05

2

3

2,151

by: bumpbot

16 Jul 2024, 04:26

ER

The product of the GCF and LCM of integers p and q is rs. What is the

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

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

Jazzmin

25 Oct 2018, 13:05

4

2,672

by: bumpbot

17 Jul 2024, 07:15

ER

For all values x and y, x?y = 3^(2x + 2y)/3^(2x – 2y). What is the val

555-605 (Medium) | Algebra, Exponents

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

Bunuel

12 Mar 2018, 21:41

6

5

3,849

by: bumpbot

17 Jul 2024, 15:27

ER

What is the median number of audience members attending a showing of a

555-605 (Medium) | Statistics and Sets Problems

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

EMPOWERgmatRichC

03 Oct 2019, 11:43

7

6

2,500

by: bumpbot

18 Jul 2024, 08:59