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

178

15

79,037

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

857

24

188,707

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

488,240

by: bb

29 Aug 2025, 13:27

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

7,173

by: Basshead

05 Nov 2020, 12:45

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

11,816

by: bumpbot

18 Jul 2021, 22:31

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

6,719

by: bumpbot

15 Aug 2025, 20:15

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

10,387

by: GMATBusters

30 Aug 2024, 08:17

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

14,321

by: findingmyself

23 Jun 2025, 05:12

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

10,492

by: bumpbot

13 Nov 2025, 06:52

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

2,640

by: ShilpiAgnihotrii

27 Jan 2025, 04:36

ER

What is the perimeter of ∆PQS ?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

arhumsid

02 Oct 2015, 10:40

18

8

4,257

by: bumpbot

07 May 2023, 08:45

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

13,237

by: bumpbot

26 Dec 2023, 02:33

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

13,682

by: bumpbot

08 Dec 2024, 06:14

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

3,437

by: stonecold

21 Dec 2016, 20:50

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

5,781

by: bumpbot

17 Sep 2024, 04:32

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

5,877

by: bumpbot

11 Oct 2025, 03:49

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

5,115

by: adityasuresh

28 Dec 2022, 03:08

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

3,184

by: crack1991

16 Oct 2019, 21:10

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

27

5

5,158

by: bumpbot

21 Apr 2026, 18:28

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

7,080

by: bumpbot

21 Jan 2023, 11:24

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

2,754

by: GMATWhizTeam

04 Apr 2020, 02:24

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

7,614

by: bumpbot

29 Jul 2025, 23:30

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

4,617

by: singhall

06 Jul 2023, 09:34

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

3,521

by: IanStewart

12 Jan 2022, 08:18

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

9,075

by: bumpbot

21 Apr 2026, 18:29

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

3,157

by: bumpbot

19 Aug 2022, 03:39

ER

Is xy an integer?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

23 Sep 2015, 02:46

9

7

3,912

by: bumpbot

15 Sep 2023, 07:59

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

8,098

by: Bunuel

19 Sep 2022, 02:10

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

2,694

by: bumpbot

12 Jan 2022, 07:29

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

4,263

by: bumpbot

21 Aug 2023, 20:29

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

19,128

by: BrentGMATPrepNow

12 Dec 2018, 14:45

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

7,355

by: bumpbot

11 Aug 2024, 05:08

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

13,723

by: TommasoP

07 Dec 2025, 08:31

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

3,859

by: Pankaj0901

31 Mar 2022, 12:04

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

35,729

by: bumpbot

16 Jul 2025, 04:59

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

70

9

32,176

by: bumpbot

02 Sep 2025, 08:09

ER

Is rw = 0?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

BrainLab

19 Sep 2015, 14:51

43

12

28,026

by: bumpbot

11 Jun 2023, 06:22

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

30,320

by: bumpbot

06 Nov 2025, 17:44

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

29,391

by: bumpbot

18 Sep 2025, 03:53

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

39

10

33,373

by: bumpbot

02 Sep 2025, 06:36

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

42,851

by: bumpbot

24 Aug 2025, 22:11

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

5,305

by: bumpbot

10 Oct 2024, 09:45

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

16,104

by: Basshead

22 Nov 2020, 12:29

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

4,813

by: bumpbot

23 Dec 2025, 20:33

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

4,357

by: danbrown9445

27 Jun 2021, 02:01

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

6,163

by: bumpbot

06 Feb 2022, 05:46

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

5,216

by: Bunuel

12 May 2017, 07:06

ER

Is P positive? (1) P^3 = P (2) |P| = P

605-655 (Medium) | Absolute Values, Algebra

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

Hemavakade

16 Sep 2015, 12:31

23

10

5,134

by: Rahilgaur

23 Jul 2025, 04:34

ER

33 out of the 47 students in an advanced degree program have a higher

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

16 Sep 2015, 07:23

50

5

9,367

by: bumpbot

17 Sep 2024, 02:04

ER

Set J consists of terms {2, 7, 12, 17, a}. Is a > 7? (1) a is the

555-605 (Medium) | Statistics and Sets Problems

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

1, 2

Bunuel

07 Apr 2020, 05:26

13

21

6,677

by: bumpbot

29 Jul 2025, 23:11

ER

The ratio of television sets to radios at an electronic store before

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

Bunuel

16 Sep 2015, 04:17

30

7

10,010

by: bumpbot

01 Mar 2025, 02:17

ER

If abc 0, is a > 0? (1) 3*a/b > 0 (2) b/c^2 < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

03 Jul 2025, 07:05

6

4

4,485

by: bebu24

03 Jul 2025, 06:49

ER

If x and y are both positive integers, x is a multiple of 3 and y is a

505-555 (Easy) | Multiples and Factors

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

zahraf

15 Sep 2015, 18:57

31

10

15,367

by: bumpbot

21 Sep 2025, 01:39