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

176

15

78,823

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

856

24

188,583

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

488,025

by: bb

29 Aug 2025, 13:27

A red box contains 7 ropes, with an average length of 60 cm per rope,

805+ (Hard) | Arithmetic, Min-Max Problems

805+ (Hard) | Arithmetic, Min-Max Problems hide tags

amanvermagmat

07 May 2018, 23:47

87

4

9,686

by: bumpbot

16 Jan 2024, 11:33

ER

If x and y are positive what is the value of x?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

03 Oct 2018, 01:39

4

6

9,692

by: bumpbot

11 Aug 2023, 06:22

ER

If a and b are nonzero integers, is a^b an integer?

805+ (Hard) | Exponents +2 tags

805+ (Hard) | Exponents, Inequalities, Number Properties hide tags

Bunuel

21 Jan 2020, 01:22

24

14

9,693

by: bumpbot

13 Jul 2023, 16:24

ER

Is |x y| < |x| + |y|?

655-705 (Hard) | Absolute Values, Inequalities

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

venmic

08 Aug 2012, 22:08

54

15

9,693

by: bumpbot

13 Dec 2024, 04:13

ER

If a, c, d, x, and y are positive integers such that ay < x and c/d is

805+ (Hard) | Fractions and Ratios, Number Properties

805+ (Hard) | Fractions and Ratios, Number Properties hide tags

1, 2

Bunuel

04 May 2015, 06:13

95

21

9,693

by: bumpbot

13 Jun 2025, 04:21

ER

What was the percent increase in the value of a certain antique from

Sub 505 (Easy) | Percent and Interest Problems, Word Problems

Sub 505 (Easy) | Percent and Interest Problems, Word Problems hide tags

Bunuel

22 Dec 2014, 08:43

9

6

9,696

by: bumpbot

17 Oct 2022, 03:09

ER

If a, b, and c are positive integers and a/6+b/5 =c/30, is c divisibl

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

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

BillyZ

01 May 2017, 05:59

28

6

9,696

by: bumpbot

26 Sep 2025, 05:13

ER

Line L passes through points R(0, -5 ) and S(4,0) (see figure above).

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

15 Oct 2017, 09:49

33

12

9,702

by: bumpbot

20 Mar 2023, 07:05

ER

If y does not equal 0. Does x = 0 ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

rxs0005

07 Oct 2014, 07:55

13

11

9,703

by: bumpbot

18 Dec 2020, 11:28

ER

Is p^2 - 1 divisible by 12?

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

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

alphonsa

15 Aug 2014, 09:13

13

8

9,704

by: KanishkM

05 Jan 2019, 09:04

ER

If 2^x(5^n) = t, what is the value of t? (1) x = n + 3 (2) 2^x = 32

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

Bunuel

03 Oct 2018, 03:00

9

6

9,708

by: bumpbot

07 Mar 2024, 07:55

ER

How many hours does it take 12 machines with identical production rate

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

17 Dec 2014, 07:58

16

13

9,710

by: bumpbot

16 Sep 2025, 03:43

ER

Is q > t ? (1) qp^2 < tp^2 (2) qp^3 > tp^3

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

11 Nov 2014, 05:41

32

13

9,711

by: bumpbot

19 Apr 2023, 13:02

ER

What is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

19 Feb 2016, 03:42

13

7

9,713

by: BrentGMATPrepNow

13 Mar 2022, 07:21

ER

In trapezoid JKLM, KL//JM, and JK = LM = 5. What is the area of this

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

mikemcgarry

31 May 2016, 10:27

13

9,715

by: bumpbot

16 Nov 2022, 09:02

ER

Triangle ABC is an isosceles triangle with AB = AC and AD is the perpe

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

EgmatQuantExpert

07 Aug 2018, 04:36

4

9,721

by: EgmatQuantExpert

27 Mar 2017, 05:20

ER

For nonzero integers M and N, is M/N > (MN)^4?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Yalephd

12 Jul 2013, 01:50

23

14

9,721

by: bumpbot

20 Jan 2024, 09:00

What is the value of p + q + r

Poor Quality

Poor Quality hide tags

gsingh0711

09 Aug 2018, 08:31

17

14

9,725

by: PKN

09 Aug 2018, 22:41

ER

The figure above shows the floor plan and inside dimensions of the gro

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Apr 2019, 07:29

14

6

9,732

by: bumpbot

23 Apr 2023, 02:42

ER

If x and y are integers such that x < y < 0 what is x?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

tricialin

22 Jul 2013, 09:03

40

3

9,734

by: bumpbot

08 Apr 2025, 08:31

ER

In a sequence of numbers, if the first number is a positive integer an

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

23 May 2020, 08:34

44

7

9,738

by: bumpbot

20 Nov 2024, 11:56

ER

If x and y are positive integers and xy is divisible by prime number p

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

RichaChampion

12 Sep 2016, 01:32

22

5

9,742

by: bumpbot

17 Mar 2024, 20:14

ER

The figure above shows the top of a circular cake with a slice removed

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Apr 2019, 07:32

31

6

9,742

by: bumpbot

21 Sep 2024, 13:44

ER

Point (x, y) lies in which quadrant of the rectangular coordinate syst

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

11 Jan 2015, 12:32

9

3

9,743

by: bumpbot

14 Feb 2021, 11:49

ER

If an=f(n) for all integers n>0, is a4>a8?

705-805 (Hard) | Algebra, Functions and Custom Characters

705-805 (Hard) | Algebra, Functions and Custom Characters hide tags

Bunuel

23 Jan 2015, 07:40

51

12

9,743

by: bumpbot

03 Jul 2025, 00:52

ER

Are a and b integers? (1) a/b is an integer

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

eybrj2

24 Feb 2012, 23:25

25

3

9,754

by: bumpbot

20 Oct 2024, 03:07

ER

Is positive integer A greater than positive integer B?

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

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

Bunuel

27 Jan 2015, 07:38

59

11

9,757

by: bumpbot

31 Dec 2023, 00:46

ER

a, b, and c are integers in the set {a, b, c, 51,85,72}.

655-705 (Hard) | Statistics and Sets Problems

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

jlgdr

20 Sep 2013, 16:39

51

14

9,764

by: bumpbot

10 Nov 2025, 13:15

ER

Is integer x positive?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

shekar123

02 Aug 2010, 16:47

19

17

9,770

by: bumpbot

16 May 2023, 13:52

ER

Is square root of a positive integer x an integer?

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

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

summer101

03 Jun 2013, 07:14

37

2

9,771

by: Bunuel

05 Jun 2013, 03:07

ER

If x is a positive integer, what is the remainder when x is divided by

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

Bunuel

04 Dec 2019, 02:52

33

5

9,781

by: bumpbot

10 Mar 2024, 07:18

ER

At an engineering firm, 80 employees have graduate degrees (PhDs or Ma

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

09 Feb 2017, 03:14

33

14

9,783

by: bumpbot

13 Sep 2025, 23:37

ER

If xy < 4, is x < 2 ? (1) y > 1 (2) y > x

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

18 Mar 2012, 06:25

16

11

9,785

by: Bunuel

03 Nov 2020, 12:01

ER

If x and y are positive integers, is x a multiple of y?

655-705 (Hard) | Multiples and Factors

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

sahuamit91

05 Sep 2017, 10:40

61

8

9,786

by: bumpbot

03 Aug 2025, 06:27

ER

If a is an integer and a=|b|/b is a=1

605-655 (Medium) | Absolute Values, Inequalities

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

rxs0005

18 Feb 2012, 05:04

45

14

9,789

by: bumpbot

21 Aug 2025, 16:05

ER

What is the units digit of the three-digit integer N ?

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

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

Bunuel

07 Sep 2015, 22:45

59

16

9,789

by: Stella5200

11 Nov 2025, 21:23

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

9,790

by: bumpbot

05 Nov 2023, 05:19

ER

Pat invested $4,000 at a percent simple annual interest and a differen

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

15 Aug 2019, 01:00

4

9,792

by: bumpbot

15 Jun 2021, 03:01

Triangles ABC and DEF are similar right triangles. If the hypotenuse

805+ (Hard) | Algebra, Geometry

805+ (Hard) | Algebra, Geometry hide tags

giobas

01 Mar 2017, 11:41

55

6

9,797

by: gmatophobia

18 Nov 2022, 23:08

ER

The sum of the digits of a three-digit number is 11. What is the produ

555-605 (Medium) | Fractions and Ratios

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

Bunuel

09 Jul 2015, 04:07

13

11

9,812

by: bumpbot

14 Oct 2018, 18:23

ER

What is the value of x^2 – y^2?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

porvakanti

18 Dec 2015, 01:01

9

12

9,813

by: bumpbot

12 Sep 2021, 16:54

ER

A sales manager must select a team of either three or of fou

655-705 (Hard) | Combinations, Word Problems

655-705 (Hard) | Combinations, Word Problems hide tags

fozzzy

15 Jun 2013, 05:27

38

6

9,814

by: egmat

26 Sep 2025, 02:18

ER

Retailer Z acquired a certain refrigerator and then sold it

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Fish181

25 Mar 2024, 10:01

56

6

9,814

by: Borrat

22 Mar 2026, 05:51

ER

What is the value of (a+b)^2?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

megafan

24 Dec 2012, 18:59

18

6

9,815

by: bumpbot

06 May 2024, 12:54

ER

A certain nutritional study defined the N-score for one serving of a

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

punit2020

26 Dec 2023, 06:41

61

9

9,815

by: Bunuel

20 Oct 2025, 10:08

ER

A rectangular aquarium provides 36 square centimeters of water-surface

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

tarungmat

07 Apr 2015, 05:42

31

10

9,822

by: bumpbot

22 Dec 2021, 11:23

ER

What is the equation of the line k that is perpendicular to line y = 2

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

gmatcraze

29 Aug 2008, 09:49

21

16

9,828

by: Bunuel

10 Mar 2023, 04:30

ER

Of the people who attended a workshop, 60 percent were teachers and so

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Sash143

13 Jan 2016, 04:08

13

4

9,829

by: anairamitch1804

05 Feb 2017, 01:31

ER

Set S contains exactly four distinct positive integers. Is t

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

daviesj

07 Jan 2013, 10:30

29

7

9,834

by: bumpbot

09 Aug 2025, 21:35

ER

If machine J, working alone at its constant rate, takes 2 minutes to

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

Bunuel

08 Jul 2018, 23:20

7

4

9,837

by: bumpbot

13 Nov 2022, 06:52