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

79,083

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

188,732

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

488,296

by: bb

29 Aug 2025, 13:27

ER

If m and n are positive integers, what is the units' digit of 7^{(m+3+

555-605 (Medium) | Exponents, Number Properties

555-605 (Medium) | Exponents, Number Properties hide tags

Bunuel

10 Feb 2020, 05:02

4

3

2,408

by: bumpbot

25 Feb 2021, 07:07

ER

If ab^2 = 50, what is the value of a(a – b)(a + b)? (1) a^3 = 8

605-655 (Medium) | Algebra, Inequalities

605-655 (Medium) | Algebra, Inequalities hide tags

vita60

14 Jul 2019, 07:03

4

3

3,189

by: IanStewart

22 Feb 2021, 17:24

ER

Micah saved $300 of his take-home pay last month. How much was Micah’s

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

01 Feb 2021, 13:46

4

3

1,647

by: rriitkgp

22 Feb 2021, 11:10

ER

What is area of equilateral ABC? 1) Ratio of areas of the biggest ci

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

12 Feb 2021, 23:30

4

2

1,094

by: Archit3110

15 Feb 2021, 01:37

ER

What is the value of x ? (1) √(x^2) = 19 (2) √(19^2) = x

555-605 (Medium) | Algebra, Roots

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

Bunuel

12 Feb 2021, 01:15

4

2,219

by: Bunuel

15 Feb 2021, 01:30

ER

Find the value of the two digit number Z?

655-705 (Hard) | Multiples and Factors

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

Bunuel

08 Feb 2021, 01:15

4

7

2,330

by: Ujjawalm8shra

11 Feb 2021, 09:06

ER

If |x| < 1, is x < 0 ? (1) x > 0.5*x^2 (2) x/|x| = 1

605-655 (Medium) | Absolute Values, Inequalities

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

Bunuel

05 Feb 2021, 01:15

4

6

2,290

by: rsrighosh

07 Feb 2021, 07:24

ER

A shopkeeper sells apples for $7 each and strawberries for $15.00 each

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 Jan 2021, 01:15

4

1,964

by: akadiyan

29 Jan 2021, 23:56

ER

Is x + y > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

EgmatQuantExpert

23 May 2017, 06:58

4

5

6,094

by: bumpbot

29 Jan 2021, 12:23

ER

X is a two-digit positive integer. If the ratio between the units digi

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

24 Jun 2016, 03:10

4

7

2,370

by: bumpbot

27 Jan 2021, 09:06

ER

According to the table of shipping rates above

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

ezinis

10 Nov 2009, 06:57

4

4,787

by: bumpbot

23 Jan 2021, 04:24

ER

Is x > y? (1) x - 5 > y - 5 (2) x^2 > xy

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kumar83

05 Nov 2020, 06:49

4

5

2,869

by: bumpbot

20 Jan 2021, 10:45

ER

If x < 0, is y/x < 1 ? (1) y < x (2) y < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 Jan 2020, 05:27

4

3

2,461

by: bumpbot

18 Jan 2021, 23:32

ER

What is the value of the positive integer k?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

MathRevolution

15 Feb 2018, 04:39

4

5

3,234

by: bumpbot

14 Jan 2021, 21:23

ER

What is the value of a + b?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

01 Jul 2016, 04:19

4

7

3,477

by: bumpbot

09 Jan 2021, 09:09

ER

Each day, Sergio feeds his cat a 500-gram mixture of Brand X and Brand

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

13 Apr 2018, 01:41

4

5

3,923

by: CEdward

08 Jan 2021, 22:24

ER

What is the value of a ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

atalpanditgmat

03 Apr 2013, 09:42

4

7

5,002

by: MHIKER

05 Jan 2021, 16:10

ER

Is a single digit integer x even? 1) Sum of all the factors of x is e

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

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

GMATinsight

30 Jun 2017, 20:05

4

1,992

by: Gmatmenow

05 Jan 2021, 13:40

ER

What is the value of |x + y| ? (1) |x| = 3 (2) |y| = 2

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

Bunuel

10 Oct 2019, 01:47

4

2

2,670

by: bumpbot

03 Jan 2021, 04:18

ER

If m and n are positive integers, what is the units digit of 556^17n +

655-705 (Hard) | Exponents, Multiples and Factors

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

Bunuel

23 Dec 2020, 01:15

4

5

1,845

by: rocky620

24 Dec 2020, 06:45

ER

The difference of two positive integers is 10. What are the numbers?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

kawal27

20 Dec 2020, 20:27

4

1

1,605

by: TestPrepUnlimited

20 Dec 2020, 17:58

ER

If x and z are integers, is at least one of them even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

07 Feb 2017, 06:39

4

3

7,490

by: MathRevolution

18 Dec 2020, 08:40

ER

N is a four digit number. N = ABCD where A, B, C, D are distinct

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Abhi077

11 Dec 2020, 09:43

4

3

3,989

by: MathRevolution

18 Dec 2020, 08:08

ER

If a and b are positive integers, is the product ab odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

17 Apr 2017, 23:31

4

7

4,008

by: bumpbot

10 Dec 2020, 20:51

In a xy plane, a circle with radius....

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

RakshithTN

01 Sep 2020, 10:30

4

1,956

by: Ankit137

08 Dec 2020, 20:37

ER

Is x > 5 ? (1) x^2 > 25 (2) 2x + 7 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Nov 2017, 02:23

4

9

5,698

by: sanjayparihar16

04 Dec 2020, 12:42

ER

In the triangle above, what is the measure of Angle YZX?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

14 May 2020, 07:18

4

5

4,450

by: SiddharthR

19 Nov 2020, 14:15

ER

If xy ≠ 0. Is x + y = 0 ? (1) x is reciprocal of y. (2) x ≠ 1.

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

10 Dec 2018, 02:21

4

2,766

by: bumpbot

18 Nov 2020, 07:08

ER

If A and B are positive integers, does B have more prime factors than

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

10 Nov 2020, 01:15

4

8

2,682

by: IanStewart

15 Nov 2020, 13:49

ER

Is the product of positive integers x and y a prime number?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

04 Nov 2020, 05:00

4

5

2,025

by: Basshead

05 Nov 2020, 16:39

ER

Is 5 > x > 0 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

GMATD11

23 Feb 2014, 05:17

4

10

5,226

by: Basshead

31 Oct 2020, 02:59

ER

If n is an integer, what is the remainder when 3+8n is divided by 6?

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

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

TheUltimateWinner

25 Oct 2020, 09:04

4

6

1,669

by: PRAJESH0133

26 Oct 2020, 10:44

ER

What is the value of xyz? (1) y! = 6 and x! > 720 (2) z is the least

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

01 May 2019, 00:39

4

7

2,438

by: bumpbot

25 Oct 2020, 03:04

ER

Is X an even integer ?

Poor Quality

Poor Quality hide tags

AnisMURR

12 Oct 2020, 10:58

4

5

1,209

by: VoltAmpere

15 Oct 2020, 17:49

ER

The total weight of all residents of Ranchville

555-605 (Medium) | Statistics and Sets Problems

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

gmatgambler

14 Jan 2014, 06:24

4

2

2,378

by: bumpbot

03 Oct 2020, 23:56

ER

If n is an integer, is n>1?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

chetan2u

28 Sep 2020, 23:27

4

3

1,513

by: SHoylandBPrep

29 Sep 2020, 14:08

ER

If x is a positive integer, is x a multiple of 12?

555-605 (Medium) | Multiples and Factors

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

deepalidmoon

22 Sep 2020, 09:02

4

6

3,087

by: deepalidmoon

24 Sep 2020, 20:50

ER

If digit p is thousandths digit of A = 7.23p6. What is the value of p?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

divyajoshi12

06 Sep 2018, 10:41

4

6,509

by: Bunuel

24 Sep 2020, 05:08

ER

D is the median of set M. n is a positive integer. If Set M

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Poor Quality hide tags

akshayleo25

27 Sep 2013, 04:17

4

2

7,937

by: bumpbot

24 Sep 2020, 04:17

ER

An art gallery has a number of paintings, each of which may include

655-705 (Hard) | Statistics and Sets Problems

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

dwars1

14 Sep 2020, 08:08

4

1

1,967

by: IanStewart

15 Sep 2020, 06:34

ER

For positive integers m and n, is m^n a perfect square?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

MathRevolution

25 Feb 2019, 01:08

4

3

2,376

by: Shrey08

01 Sep 2020, 21:53

ER

If a and b are different integers, what is the value of a?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Sep 2017, 23:42

4

2,119

by: bumpbot

01 Sep 2020, 11:31

ER

How long did it take Henry to drive to work last Wednesday? (He did no

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

19 May 2016, 03:24

4

3

8,813

by: bumpbot

01 Sep 2020, 08:28

What is the value of x-y? (1) x + y = 11 (2) 4x - 4y = 8

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Russ19

30 Aug 2020, 07:59

4

3

1,858

by: abhijitpatil

30 Aug 2020, 09:43

ER

Does x + y = 11 ? (1) x^2 + y^2 = 101 (2) xy = 10

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

12 Aug 2020, 01:06

4

9

2,752

by: bidskamikaze

12 Aug 2020, 17:49

ER

What is the remainder when 2^n is divided by 10?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

MathRevolution

15 Aug 2018, 09:52

4

6

4,474

by: Kinshook

01 Aug 2020, 23:52

ER

Is the ABC an obtuse-angled triangle? 1) Two vertices A and B of AB

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

31 Jul 2020, 22:03

4

2

1,702

by: Archit3110

01 Aug 2020, 05:44

Is integer x odd?

555-605 (Medium) | Arithmetic, Number Properties

555-605 (Medium) | Arithmetic, Number Properties hide tags

QuantMadeEasy

29 Jul 2020, 04:59

4

2

1,873

by: Nums99

29 Jul 2020, 20:43

ER

Is y = 7?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:35

4

5

3,553

by: bumpbot

21 Jul 2020, 02:10

ER

Find the sum of x-intercept and y-intercept of the line L? 1) The x a

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

GMATinsight

16 Jul 2020, 07:19

4

2,143

by: hiranmay

16 Jul 2020, 08:13