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

183

15

83,845

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

863

24

191,849

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

491,844

by: bb

29 Aug 2025, 13:27

ER

If x and y are integers and x<y, is the greatest common factor (GCF) o

555-605 (Medium) | Multiples and Factors

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

chetan2u

28 Apr 2016, 02:52

13

10

2,827

by: bumpbot

05 Nov 2023, 07:00

ER

What is the value of t^3 - m^3? (1) t^2 - m^2 = 18 (2) t - m = 2

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

25 Sep 2019, 21:55

10

4

2,250

by: bumpbot

05 Nov 2023, 05:20

ER

What is the value of t ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

jlgdr

02 Oct 2013, 02:06

5

12

9,893

by: bumpbot

05 Nov 2023, 05:19

ER

An electronics store that rents movies rents each of its VHS movies

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Gmatdecoder

30 May 2015, 03:52

10

4

3,626

by: bumpbot

05 Nov 2023, 05:10

If T is an integer between 10 and 100, what is the value of T ? (1) Th

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Carcass

27 Sep 2022, 00:58

3

2

1,853

by: bumpbot

05 Nov 2023, 05:09

ER

What is the value of the positive integer n ?

555-605 (Medium) | Algebra, Inequalities

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

Carcass

29 Sep 2022, 02:28

3

2

1,586

by: bumpbot

05 Nov 2023, 05:01

ER

Patricia has several coins, each of which is worth either 5 cents or

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

dcummins

30 Nov 2018, 16:26

27

6

9,184

by: bumpbot

05 Nov 2023, 04:55

ER

If x^2 - y^2 = 27, what is the value of (x + y)^2 ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

avohden

02 Nov 2013, 00:47

27

9

12,860

by: bumpbot

05 Nov 2023, 04:51

ER

If z is different from 0, is y greater than zero?

555-605 (Medium) | Algebra, Number Properties

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

Carcass

25 Sep 2022, 10:49

6

3

2,187

by: bumpbot

05 Nov 2023, 02:46

ER

Is there a route from A to C that passes through B and is more than 8

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

24 Oct 2017, 23:51

1

3

4,041

by: bumpbot

05 Nov 2023, 01:46

ER

Is the least common multiple of positive integers x and y greater tha

655-705 (Hard) | Multiples and Factors

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

nislam

02 Nov 2021, 09:34

4

5

2,230

by: bumpbot

04 Nov 2023, 20:43

ER

If △ denotes a function, what is the value of x△y ?

Sub 505 (Easy) | Functions and Custom Characters

Sub 505 (Easy) | Functions and Custom Characters hide tags

Bunuel

05 Oct 2020, 01:30

1

2

1,893

by: bumpbot

04 Nov 2023, 14:10

ER

Working together, Joe and Joanne finish a job in 2 hours. How long

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

03 Nov 2023, 01:30

4

2

1,281

by: VivekSri

04 Nov 2023, 11:02

ER

How many people are in the queue?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Vineetk

25 Jun 2013, 04:55

7

3

7,311

by: bumpbot

04 Nov 2023, 08:19

ER

What is the area of triangle ABC ?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

yvette726

23 Jun 2015, 23:07

28

7

11,792

by: bumpbot

04 Nov 2023, 05:35

Is the value of n closer to 25 than to 50 ? (1) 50 n > n 25 (2) n

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Carcass

27 Sep 2022, 00:59

3

2

1,394

by: bumpbot

04 Nov 2023, 05:21

ER

If xy = 8, what is the value of xy(x + y) ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Carcass

28 Sep 2022, 02:07

3

2

1,425

by: bumpbot

04 Nov 2023, 05:18

ER

If a, b, c and d are distinct numbers, can b be the average of a, b, c

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

30 Jul 2022, 17:15

3

2

1,411

by: bumpbot

04 Nov 2023, 04:55

ER

Working together, Joe and Joanne finish a job in 2 hours. How long wil

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

16 Oct 2023, 01:30

1

2

1,579

by: Prashant316Jindal

03 Nov 2023, 22:53

ER

If a, b and c are integers, and a+b=c, is b a multiple of 7? (1) a is

605-655 (Medium) | Multiples and Factors

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

Bunuel

03 Nov 2023, 01:30

4

1

1,312

by: chetan2u

03 Nov 2023, 21:58

ER

If x and y are positive odd integers, and x < y, what is the value of

705-805 (Hard) | Multiples and Factors

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

BrentGMATPrepNow

04 Mar 2022, 08:37

9

2

1,790

by: bumpbot

03 Nov 2023, 21:45

ER

If a, b, x and y are positive integers, what is the value of a - b?

705-805 (Hard) | Algebra, Exponents

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

Bunuel

06 Nov 2014, 09:05

25

4

8,273

by: bumpbot

03 Nov 2023, 12:33

ER

At a used book store, the books are divided into hardcovers, which sel

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Nov 2019, 03:21

1

3

4,674

by: bumpbot

03 Nov 2023, 03:41

ER

If the positive integer x is rounded to the nearest ten, wil

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

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

kingflo

21 Jul 2013, 10:54

30

4

10,484

by: Dhruva2000

03 Nov 2023, 00:59

ER

In the diagram, what is the length of AB?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

1, 2

enigma123

05 Feb 2012, 17:30

93

30

45,320

by: bumpbot

02 Nov 2023, 21:41

ER

If x = 1 – 2y, what is z?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

16 Jun 2017, 04:08

4

9

4,753

by: bumpbot

02 Nov 2023, 11:06

ER

Is positive integer x odd?

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

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

Bunuel

05 Jan 2021, 01:15

28

10

4,355

by: bumpbot

02 Nov 2023, 10:03

ER

A certain dealership has two locations. Last month, an average (arithm

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

05 May 2017, 03:49

2

4

2,898

by: Its_me_aka_ak

02 Nov 2023, 07:16

ER

Is |x| > 1 ? (1) x^y > x (2) y = -1/2

605-655 (Medium) | Absolute Values +2 tags

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

aarish2102

13 Jul 2022, 06:10

12

5

3,007

by: bumpbot

02 Nov 2023, 01:24

ER

If x and z are positive numbers less than 16, is z greater than the

655-705 (Hard) | Algebra, Number Properties

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

Bunuel

17 Dec 2017, 23:38

18

8

5,762

by: Sonia2023

02 Nov 2023, 01:08

ER

If x^2 + 2xwy + 3wy^2 = 144, and if x & y & w are all positive, then w

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

18 Mar 2015, 05:07

21

16

9,026

by: bumpbot

02 Nov 2023, 00:46

ER

A triangle is formed by the x-axis, the y-axis, and Line M. Is the are

655-705 (Hard) | Coordinate Plane, Geometry

655-705 (Hard) | Coordinate Plane, Geometry hide tags

Bunuel

11 Oct 2015, 09:34

42

12

13,651

by: bumpbot

01 Nov 2023, 22:27

ER

If |x – y| = 10, what is the value of x? (1) x > 0 (2) y = 12

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

26 Dec 2016, 10:59

5

11

4,168

by: bumpbot

01 Nov 2023, 21:08

ER

What was the percent increase in the average (arithmetic mean) contrib

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

19 Nov 2017, 10:16

11

4

6,830

by: bumpbot

01 Nov 2023, 12:11

ER

If x is a positive integer greater than 1, does x have at

655-705 (Hard) | Multiples and Factors

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

LM

24 Oct 2012, 05:05

11

6

4,557

by: bumpbot

01 Nov 2023, 10:38

ER

What is the value of x ? (1) (x 1)(x 2.5) = 1 (2) |x 5| = 2

655-705 (Hard) | Absolute Values, Algebra

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

Bunuel

01 Nov 2023, 01:30

2

1

1,694

by: chetan2u

01 Nov 2023, 09:42

ER

One side of a certain triangle has length 7. Is the perimeter of the t

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

12 Feb 2023, 22:36

4

1,849

by: dvns

01 Nov 2023, 09:36

ER

Six congruent circles are packed into an equilateral triangle so that

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

08 Mar 2018, 21:17

39

6

9,701

by: HaSmamit

01 Nov 2023, 07:43

ER

A six-sided mosaic contains 24 triangular pieces of tile of the same

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

1, 2

Bunuel

26 Apr 2019, 03:01

99

24

29,179

by: bumpbot

01 Nov 2023, 05:18

Is pq > 0? (1) x^2 - px + q = 0 has real and positive roots

705-805 (Hard) | Algebra, Inequalities

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

TheUltimateWinner

07 Apr 2019, 08:46

9

3

2,050

by: bumpbot

01 Nov 2023, 01:48

ER

What is the value of ab ? (1) a|b| = 7 (2) b|a| = 7

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

31 Oct 2023, 01:30

4

2

1,009

by: unraveled

31 Oct 2023, 08:57

ER

What is the value of p? (1) 4|q^2 - 1| = p - 5 (2) |7 - p| = 6

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

Bunuel

15 Jun 2020, 02:02

14

11

4,075

by: bumpbot

31 Oct 2023, 07:38

ER

What is the value of the positive number, p?

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

UB001

15 Jan 2019, 08:19

10

2

8,314

by: bumpbot

31 Oct 2023, 07:00

ER

Is r*s a prime number?

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

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

chetan2u

23 Nov 2019, 21:45

1

5

1,780

by: bumpbot

31 Oct 2023, 06:51

ER

What is the value of x? (1) (x – 5)^2 = 0 (2) (x – 3)^2 = 4

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

07 Oct 2021, 01:30

6

5

2,269

by: bumpbot

31 Oct 2023, 06:46

ER

If x is a positive integer, x = ?

655-705 (Hard) | Inequalities, Roots

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

Bunuel

18 Oct 2021, 01:30

7

4

3,282

by: bumpbot

31 Oct 2023, 06:10

ER

A local restaurant draws a business card from a jar every day. The per

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

04 Dec 2019, 02:44

6

3

3,102

by: bumpbot

31 Oct 2023, 04:53

ER

In the right coordinate plane, the distance between the point (0, 0) a

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Russ19

04 Aug 2021, 07:45

11

2

2,041

by: bumpbot

30 Oct 2023, 23:02

ER

If integer p is greater than 1, is p a prime number?

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

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

Bunuel

05 Jul 2018, 01:35

12

6

14,832

by: surah

30 Oct 2023, 22:15

ER

If w and z are positive is w/z < 1 ?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

xmagedo

26 Jul 2010, 00:58

8

10

9,307

by: surah

30 Oct 2023, 22:12