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

78,708

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,518

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,926

by: bb

29 Aug 2025, 13:27

ER

If k is an integer, is 5^(-k) < 5^(1-2k)?

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

17 Sep 2015, 00:46

6

7

5,211

by: Bunuel

12 May 2017, 07:06

ER

If xy < 0, is x/y > z ? (1) xyz < 0 (2) x > yz

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

17 Sep 2015, 00:53

16

9

6,155

by: bumpbot

06 Feb 2022, 05:46

ER

A and B are nonzero integers, is A < 5B?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

17 Sep 2015, 01:08

11

6

4,354

by: danbrown9445

27 Jun 2021, 02:01

ER

Brian is selling souvenirs outside of a Detroit Tigers baseball game.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

17 Sep 2015, 01:10

17

12

4,800

by: bumpbot

23 Dec 2025, 20:33

ER

For isosceles triangle LMN, what is the measure of angle N?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

10 May 2016, 01:20

10

17

16,089

by: Basshead

22 Nov 2020, 12:29

ER

The product of integers a, b, c, and d is 120. What is the value of in

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

17 Sep 2015, 01:16

16

12

5,300

by: bumpbot

10 Oct 2024, 09:45

ER

Each of the marbles in a jar is either red or white or blue. If one ma

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

BrainLab

19 Sep 2015, 12:55

69

10

42,812

by: bumpbot

24 Aug 2025, 22:11

ER

What is the value of 10 percent of y?

Sub 505 (Easy) | Percent and Interest Problems

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

BrainLab

19 Sep 2015, 14:25

40

10

33,348

by: bumpbot

02 Sep 2025, 06:36

ER

If sequence S has 120 terms, what is the 105th term of S?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

BrainLab

19 Sep 2015, 14:27

47

12

29,375

by: bumpbot

18 Sep 2025, 03:53

ER

Three houses are being sold through a real estate agent

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

BrainLab

19 Sep 2015, 14:39

57

7

30,301

by: bumpbot

06 Nov 2025, 17:44

ER

Is rw = 0?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

BrainLab

19 Sep 2015, 14:51

43

12

28,008

by: bumpbot

11 Jun 2023, 06:22

ER

How many people in a group of 50 own neither a fax machine nor a laser

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

BrainLab

19 Sep 2015, 13:12

69

9

32,151

by: bumpbot

02 Sep 2025, 08:09

ER

A certain truck uses 1/12 +kv^2 gallons of fuel per mile when its spee

Sub 505 (Easy) | Distance and Speed Problems, Word Problems

Sub 505 (Easy) | Distance and Speed Problems, Word Problems hide tags

1, 2

BrainLab

26 Jul 2021, 08:37

158

20

35,692

by: bumpbot

16 Jul 2025, 04:59

ER

Is 27^a/6^b a prime number?

705-805 (Hard) | Algebra +2 tags

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

vdm

21 Sep 2015, 09:24

12

10

3,844

by: Pankaj0901

31 Mar 2022, 12:04

ER

In the correctly-worked addition calculation above, A, B, C, D, and E

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

Bunuel

22 Sep 2015, 03:09

59

7

13,697

by: TommasoP

07 Dec 2025, 08:31

ER

If xyz = 1001, is x odd? (1) y is odd (2) z is odd

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

22 Sep 2015, 03:13

39

11

7,341

by: bumpbot

11 Aug 2024, 05:08

ER

In isosceles triangle DEF, what is the measure of angle E?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

22 Sep 2015, 03:15

27

12

19,121

by: BrentGMATPrepNow

12 Dec 2018, 14:45

ER

Tyler sells two types of milkshakes: chocolate and Oreo. Chocolate mil

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

22 Sep 2015, 03:16

12

6

4,254

by: bumpbot

21 Aug 2023, 20:29

ER

Is x > y, where x and y are different non zero integers.

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

rajarshee

22 Sep 2015, 22:14

15

6

2,688

by: bumpbot

12 Jan 2022, 07:29

ER

Is n/14 an integer? (1) n is divisible by 28. (2) n is divisible by

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

shasadou

23 Sep 2015, 02:43

15

11

8,089

by: Bunuel

19 Sep 2022, 02:10

ER

Is xy an integer?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

23 Sep 2015, 02:46

9

7

3,909

by: bumpbot

15 Sep 2023, 07:59

ER

Is y > -8? (1) y = 2013^2 - 155^3 - 23^4 (2) y > (2w - 3x - 1)^2 I

655-705 (Hard) | Algebra, Inequalities

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

Bunuel

23 Sep 2015, 02:51

5

6

3,151

by: bumpbot

19 Aug 2022, 03:39

ER

At a certain company, 40% of the women are over 50 years old and 50% o

655-705 (Hard) | Percent and Interest Problems, Word Problems

655-705 (Hard) | Percent and Interest Problems, Word Problems hide tags

Bunuel

23 Sep 2015, 03:22

27

10

9,036

by: bumpbot

21 Apr 2026, 18:29

ER

A total of 2,000 t-shirts was divided among a soccer team, two basebal

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

23 Sep 2015, 03:28

6

4

3,513

by: IanStewart

12 Jan 2022, 08:18

ER

Given that A > 0 and C > 0, is (A + B)/(C + B) > A/C?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

23 Sep 2015, 03:29

21

10

4,616

by: singhall

06 Jul 2023, 09:34

ER

Is x^y > 0 ? (1) y = 2 (2) x is an integer

605-655 (Medium) | Inequalities, Number Properties

605-655 (Medium) | Inequalities, Number Properties hide tags

Bunuel

23 Sep 2015, 03:36

38

9

7,599

by: bumpbot

29 Jul 2025, 23:30

ER

If x is an integer and -2x + 1> 7, what is the value of x?

655-705 (Hard) | Algebra, Inequalities

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

Bunuel

23 Sep 2015, 22:36

4

2

2,748

by: GMATWhizTeam

04 Apr 2020, 02:24

ER

If p and q are integers greater than zero, what is the value of pq?

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

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

Bunuel

23 Sep 2015, 22:47

8

7,075

by: bumpbot

21 Jan 2023, 11:24

ER

Julie is selling lemonades in two sizes, small and large. Small lemona

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

23 Sep 2015, 22:51

25

5

5,125

by: bumpbot

21 Apr 2026, 18:28

ER

Is x+y>0?

655-705 (Hard) | Absolute Values, Inequalities

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

rajarshee

24 Sep 2015, 02:08

22

5

3,178

by: crack1991

16 Oct 2019, 21:10

ER

What is the remainder of n/15?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

cjcj

24 Sep 2015, 20:57

26

7

5,107

by: adityasuresh

28 Dec 2022, 03:08

ER

If n is positive, is n an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

24 Sep 2015, 22:33

9

11

5,864

by: bumpbot

11 Oct 2025, 03:49

ER

All attendees at a university gathering are faculty or alumni of the u

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

24 Sep 2015, 22:57

18

6

5,771

by: bumpbot

17 Sep 2024, 04:32

ER

Is the average (arithmetic mean) of m and n less than 50?

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

27 Sep 2015, 12:08

5

3,431

by: stonecold

21 Dec 2016, 20:50

ER

A certain zoo has mammal and reptiles and birds, and no other animals.

555-605 (Medium) | Fractions and Ratios

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

Bunuel

27 Sep 2015, 12:19

12

10

13,670

by: bumpbot

08 Dec 2024, 06:14

ER

For a certain concert, the price of balcony tickets was exactly half

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

Bunuel

27 Sep 2015, 12:21

19

8

13,223

by: bumpbot

26 Dec 2023, 02:33

ER

What is the perimeter of ∆PQS ?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

arhumsid

02 Oct 2015, 10:40

18

8

4,249

by: bumpbot

07 May 2023, 08:45

ER

The Population of a city, which was x in January, increases by a certa

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

29 Sep 2015, 05:04

4

2,635

by: ShilpiAgnihotrii

27 Jan 2025, 04:36

ER

Every man in a certain class either belongs to group A, belongs to gro

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

29 Sep 2015, 05:06

35

5

10,473

by: bumpbot

13 Nov 2025, 06:52

ER

Is integer k a prime number?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

29 Sep 2015, 05:13

52

18

14,317

by: findingmyself

23 Jun 2025, 05:12

ER

If x is a positive integer less than 30, is x odd?

655-705 (Hard) | Number Properties, Remainders

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

Bunuel

29 Sep 2015, 05:18

44

10

10,383

by: GMATBusters

30 Aug 2024, 08:17

ER

A nursery has 30 trees, carrying only pines, oaks, and maples. How man

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

Bunuel

29 Sep 2015, 05:22

31

7

6,709

by: bumpbot

15 Aug 2025, 20:15

ER

What is the value of m + n? (1) jm + kn + nj + km = 36 (2) j + k = 12

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

29 Sep 2015, 05:24

5

8

11,775

by: bumpbot

18 Jul 2021, 22:31

ER

For non-negative integers x, y, and z, is x^z odd?

605-655 (Medium) | Exponents, Number Properties

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

Bunuel

29 Sep 2015, 05:32

24

10

7,164

by: Basshead

05 Nov 2020, 12:45

ER

Currently, there are 40 cars in each row of the lot at a car dealershi

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 Sep 2015, 21:10

11

9

10,079

by: bumpbot

29 Jun 2024, 11:02

ER

Is 11x/23 < 7x/13 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

29 Sep 2015, 21:14

11

6

5,945

by: bumpbot

13 Nov 2023, 05:20

ER

How many years old will Fred be y years from now?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

29 Sep 2015, 21:25

6

3

5,398

by: abhimahna

23 Oct 2016, 00:53

ER

What was the final score in a game between Team X and Team Y?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

29 Sep 2015, 21:26

4

7

12,754

by: bumpbot

13 Nov 2023, 05:29

ER

Is the area of circle X greater than the area of circle Y?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

29 Sep 2015, 21:29

6

7

7,878

by: bumpbot

10 Nov 2025, 08:45

ER

Maria wants to send a package overseas. She can either pay shipping co

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

29 Sep 2015, 21:31

3

8

4,620

by: masoomjnegi

20 Dec 2018, 03:45