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

176

15

78,859

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

856

24

188,606

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

488,049

by: bb

29 Aug 2025, 13:27

ER

The total cost of producing item X is equal to the sum of

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

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

1, 2

knabi

18 Jul 2010, 20:54

171

29

40,811

by: Bunuel

01 Oct 2025, 07:23

ER

Is pqr > 0 ? (1) pq > 0 (2) q/r < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kobi90

10 Nov 2020, 09:50

12

10,417

by: bumpbot

12 Apr 2023, 21:14

ER

Is a>0? (1) a^3-a<0 (2) 1-a^2<0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

KocharRohit

12 Nov 2009, 07:48

31

17

10,271

by: bumpbot

31 Jul 2023, 10:49

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Is x > y ? (1) x^(1/2) > y^(1/2) (2) x^2 > y^2

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Konstantin Lynov

24 Jul 2003, 05:23

17

12

7,559

by: bumpbot

10 Dec 2023, 07:27

ER

If the average (arithmetic mean) of four different numbers is 30, how

605-655 (Medium) | Statistics and Sets Problems

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

kook44

06 Jun 2019, 02:45

209

14

78,277

by: bumpbot

19 Aug 2025, 22:29

ER

At a certain college , students can major in science , maths , history

655-705 (Hard) | Word Problems

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kornn

22 Jun 2020, 01:50

25

7

7,704

by: captain0612

14 May 2025, 10:18

ER

If a+b=200 and a<b , is a+b>c+d ? (1) c+d<200 (2)

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kostyan5

08 Nov 2011, 19:49

37

5

14,125

by: bumpbot

16 Nov 2023, 11:37

ER

Is the perimeter of triangle ABC greater than 20?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

kp1811

19 Nov 2009, 19:25

128

17

40,753

by: bumpbot

23 Aug 2023, 22:33

ER

Jessica has a limited investment portfolio of stocks and bon

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kpali

02 Jun 2013, 07:16

4

8

3,654

by: bumpbot

13 Dec 2018, 23:37

ER

What is the value of x^2 + y^2 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

krazo

24 Nov 2014, 01:45

2

6

4,279

by: Bunuel

24 Nov 2014, 01:45

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Is x a positive integer? (1) x^2 - 1 = 0 (2) x < 1

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

kri1311

21 Mar 2021, 08:13

3

5

1,247

by: bumpbot

25 Dec 2024, 04:34

ER

On the number line, are the points x and y on the same side

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

krikatkat

06 Jul 2014, 23:50

20

12

4,777

by: bumpbot

14 Dec 2023, 01:14

ER

If x and y are positive integers, is the product xy even ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

krishan

29 Jan 2009, 05:47

131

12

45,217

by: bumpbot

24 Sep 2024, 11:59

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Is x^3 greater than x

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krishna789

11 Jun 2014, 21:30

2

4,076

by: krishna789

12 Jun 2014, 00:38

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Is x >= 0 ?

655-705 (Hard) | Absolute Values, Algebra

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

KrishnaK

17 Jan 2011, 11:12

10

4

6,241

by: bumpbot

20 Jul 2025, 19:19

ER

How much is 70 percent of a certain number?

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Kritesh

19 May 2017, 08:16

2

2,860

by: amanvermagmat

19 May 2017, 23:54

ER

The ratio of men to children on a tour is 8:3. How many men are there?

555-605 (Medium) | Fractions and Ratios

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

Kritesh

14 May 2017, 01:50

6

4

4,611

by: CrackverbalGMAT

11 Nov 2021, 01:54

ER

An attorney charged a fee for estate planning services for a certain

Sub 505 (Easy) | Percent and Interest Problems

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

Kritesh

14 May 2017, 01:25

4

2

9,123

by: bumpbot

19 Jun 2023, 08:33

ER

Of 300 members in an organization, each German

605-655 (Medium) | Statistics and Sets Problems

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

Kritesh

17 May 2017, 13:13

12

4

4,460

by: bumpbot

10 Jan 2026, 10:20

ER

If a < 0, is b < 0 ? (1) b/a > 0 (2) a - b > 0

505-555 (Easy) | Fractions and Ratios, Inequalities

505-555 (Easy) | Fractions and Ratios, Inequalities hide tags

kritikalal

14 Jan 2018, 08:30

6

7

6,117

by: bumpbot

02 Jun 2023, 09:04

In the xy-plane, is the x-intercept of the line y = mx + b positive?

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Kritisood

14 Mar 2020, 11:15

4

1

1,928

by: nick1816

14 Mar 2020, 12:52

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On the x-y coordinate grid, if points P, Q, and R make a triangle (not

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Kritisood

26 Mar 2020, 10:09

1

5

1,292

by: Bunuel

28 Mar 2020, 03:23

Is xy < 0? (1) |x| +|y| > |x + y| (2) |x+3| < |y – 3| < 2

605-655 (Medium) | Absolute Values, Inequalities

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

Kritisood

21 Jun 2020, 08:00

4

3

1,642

by: Kinshook

21 Jun 2020, 10:39

ER

If a and b are positive integers, What is the value of tens digit of a

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Kritisood

22 Apr 2020, 08:28

7

9

3,718

by: Commendlionel

12 Dec 2020, 01:56

P is a 3-digit integer. What is the tens digit of P? When P is rounded

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Kritisood

22 Apr 2020, 08:11

3

2

1,597

by: bumpbot

25 Oct 2021, 01:03

On the x-y coordinate grid, are points A (x1, y1) and B (x2, y2) equid

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Kritisood

14 Mar 2020, 22:50

8

4

3,733

by: bumpbot

01 Aug 2022, 08:43

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Is |x - y| > x - y ? (1) y > x (2) The positive difference between x

555-605 (Medium) | Absolute Values, Inequalities

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

Kritisood

20 Jun 2020, 00:06

12

4

2,754

by: prakashb2497

28 Sep 2022, 11:04

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In the x-y plane, is angle BAC = 60o? (1) The length of AB = BC. (2) T

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Kritisood

30 Apr 2020, 11:02

9

4

3,446

by: chetan2u

28 Nov 2022, 05:51

ER

If a and b are integers then what is the remainder when a^2 + b^2 is

705-805 (Hard) | Multiples and Factors, Remainders

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

Kritisood

16 Apr 2020, 01:18

20

5

5,233

by: bumpbot

04 Dec 2022, 04:48

On the x-y coordinate grid, does the line passing through point P (not

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Kritisood

14 Mar 2020, 10:53

20

5

3,566

by: bumpbot

07 Mar 2023, 19:29

ER

p is a positive integer greater than 100. Is p divisible by 36? (1) Th

705-805 (Hard) | Multiples and Factors

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

Kritisood

19 May 2020, 09:15

8

3

2,814

by: bumpbot

02 Aug 2023, 13:15

ER

a, b, c, d, e What is the value of median of list of integers above if

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Kritisood

12 Jun 2020, 05:06

9

6

3,616

by: bumpbot

08 Aug 2023, 10:16

ER

Find the lowest number which has both X and Y as factors, where X and

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

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

Kritisood

13 Apr 2020, 08:00

2

1,697

by: bumpbot

16 Dec 2023, 03:37

ER

If x and y are positive integers such that x > y and the least common

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

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

Kritisood

12 Apr 2020, 20:17

8

4

2,136

by: bumpbot

11 Apr 2024, 15:06

Gregory wants to invest in two shares Alpha and Beta. If the share

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Kritisood

22 Apr 2020, 08:10

1

4

1,987

by: Fish181

13 Apr 2024, 11:21

ER

If X = 373p * 426q, where p and q are positive integers, what is the u

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Kritisood

13 Apr 2020, 08:08

12

2

2,767

by: bumpbot

24 Oct 2024, 05:59

ER

Is abc/d an integer if a, b, c, and d are positive integers? (1) (a +

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Kritisood

19 Jul 2020, 08:29

16

10

5,955

by: bumpbot

01 Nov 2024, 23:26

ER

Is the number of distinct prime factors of the positive integer X more

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

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

Kritisood

02 Apr 2020, 09:57

15

4

5,314

by: bumpbot

06 Feb 2025, 01:11

ER

If x and y are non-zero integers, Is x < y ? (1) x = 1y2 (2) x + y = 0

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Kritisood

23 May 2020, 10:48

18

6

2,597

by: bumpbot

17 Mar 2025, 08:35

ER

List A above has 4 numbers and List B above has 5 numbers. What is the

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Kritisood

16 Apr 2020, 02:25

6

4

2,024

by: bumpbot

07 Apr 2025, 03:52

ER

If M and N are positive integers greater than 1, what is the remainder

655-705 (Hard) | Exponents, Remainders

655-705 (Hard) | Exponents, Remainders hide tags

Kritisood

12 Apr 2020, 08:12

18

8

4,168

by: bumpbot

01 Jun 2025, 02:20

ER

In the given figure, O is the centre of the circle and RQ is the diago

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Kritisood

26 Apr 2020, 11:02

8

4

4,578

by: socialsloth

21 Nov 2025, 08:54

ER

If p and q are non-zero integers, Is p = q? (1) p + q = pq (2) pq = 4

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Kritisood

23 Jun 2020, 00:39

12

2

5,296

by: aditya khanna

07 Mar 2026, 14:34

Is y = 0 or y > 0 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

KSBGC

21 Apr 2018, 17:01

2

6

1,939

by: bumpbot

12 May 2019, 07:54

ER

Does x + y = xy?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

KSBGC

26 Apr 2018, 05:53

3

4

7,907

by: hegapm

16 Jun 2021, 02:00

ER

(H^2 - 2H)^(1/2) = T(1 - R^2)^(1/2)/(K(1 - g^k)), then 3H =

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

KSBGC

05 Mar 2019, 21:29

5

3

1,881

by: Dreamcatcher029

06 Aug 2022, 10:34

ER

What is the value of 0.1 + 0.1^(1/m) + 0.1^(1/n) ?

705-805 (Hard) | Algebra, Exponents

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

KSBGC

27 Feb 2023, 10:20

6

2,905

by: SaquibHGMATWhiz

28 Feb 2023, 01:43

ER

What is the value of (7x + 2y + 5z)/(8a + b + 3c) ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

KSBGC

05 Mar 2019, 16:32

3

2

2,097

by: bumpbot

14 Dec 2023, 22:48

ER

If p and q are both positive integers, then is p divisible by 9?

555-605 (Medium) | Fractions and Ratios, Number Properties

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

KSBGC

05 Mar 2019, 16:02

17

4

3,142

by: bumpbot

24 Apr 2024, 05:29

ER

What is the remainder when a is divided by 4?

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

ksear

19 Dec 2010, 15:22

40

12

22,994

by: AKAV46

06 Aug 2023, 09:42