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

182

15

83,048

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,270

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

491,170

by: bb

29 Aug 2025, 13:27

ER

If X and N are positive integers, what is the remainder when X is

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

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

amanvermagmat

02 Jul 2018, 11:11

11

6

1,903

by: bumpbot

18 Apr 2025, 03:39

ER

A positive integer N has exactly 6 unique positive factors. What is th

705-805 (Hard) | Multiples and Factors

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

amanvermagmat

21 Mar 2019, 22:22

8

3

3,662

by: bumpbot

11 Apr 2025, 08:40

ER

8 people in a room: A, B, C, D, E, F, G, H, have an average age of 36

705-805 (Hard) | Arithmetic, Word Problems

705-805 (Hard) | Arithmetic, Word Problems hide tags

amanvermagmat

03 Mar 2018, 03:26

4

3

2,801

by: bumpbot

12 Mar 2025, 01:53

ER

Out of the total boys and girls in a class, 45% are boys and 25% are

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

11 May 2018, 11:27

15

4

3,134

by: bumpbot

25 Feb 2025, 07:19

Kim sold five shirts in a day in her shop. What was the profit percent

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

05 Jun 2018, 11:26

4

3

3,063

by: bumpbot

23 Feb 2025, 04:50

ER

15 members of a small club are all standing in a queue for the collect

705-805 (Hard) | Number Properties, Word Problems

705-805 (Hard) | Number Properties, Word Problems hide tags

amanvermagmat

08 Apr 2018, 05:24

3

2,300

by: bumpbot

14 Jan 2025, 09:06

ER

Six distinct integers are multiplied with each other. Is the product

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

amanvermagmat

13 Mar 2019, 12:08

5

1,901

by: bumpbot

26 Dec 2024, 20:59

Soni and Misha are exchanging stamps with each other. At the start, So

805+ (Hard) | Arithmetic, Word Problems

805+ (Hard) | Arithmetic, Word Problems hide tags

amanvermagmat

05 Aug 2018, 05:31

6

2

1,906

by: bumpbot

12 Dec 2024, 23:26

In a class of 34 students, X know how to sing, Y know how to dance. If

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

amanvermagmat

02 Jul 2018, 11:28

2

1,703

by: bumpbot

06 Dec 2024, 05:18

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Tom and Harry started running around a circular track of length 400 me

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

amanvermagmat

09 Jul 2018, 21:30

2

3

13,057

by: bumpbot

22 Nov 2024, 02:01

Which school out of school A and school B has greater number of boys?

605-655 (Medium) | Arithmetic, Fractions and Ratios

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

amanvermagmat

27 Jun 2018, 22:08

4

3

2,421

by: bumpbot

17 Nov 2024, 22:05

There are three types of Chandeliers hung in a party hall: A, B and C.

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

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

amanvermagmat

18 May 2018, 11:48

28

5

4,600

by: bumpbot

09 Nov 2024, 07:43

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A real number N is of the form p/q, where p and q are both distinct po

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

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

amanvermagmat

21 Jul 2018, 10:54

5

3

2,120

by: bumpbot

31 Oct 2024, 03:55

ER

At a company dinner, each of the 56 employees present ate at least one

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

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

amanvermagmat

11 May 2018, 11:38

15

3

2,907

by: bumpbot

12 Oct 2024, 05:50

ER

What is the remainder when y^2 is divided by 6? (1) y is a prime numb

805+ (Hard) | Multiples and Factors, Number Properties

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

amanvermagmat

02 Apr 2018, 04:54

6

7

2,017

by: bumpbot

03 Oct 2024, 10:26

ER

If m and n are positive real numbers, is m/n an integer? (1) n is not

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

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

amanvermagmat

25 Jul 2018, 11:09

3

2

1,679

by: bumpbot

25 Sep 2024, 06:30

Truck A gives an average of X miles per gallon of petrol while truck B

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

13 Jul 2018, 10:59

2

3

2,267

by: bumpbot

24 Sep 2024, 19:14

What is the remainder when x^2 is divided by 6? (1) x is a prime numb

505-555 (Easy) | Multiples and Factors, Number Properties

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

amanvermagmat

02 Apr 2018, 04:48

2

1,558

by: Ayeka

05 Sep 2024, 09:46

Sarah and Angela are playing a game where Angela gives a random positi

705-805 (Hard) | Multiples and Factors

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

amanvermagmat

21 May 2018, 21:47

10

2

2,336

by: SatvikVedala

30 Aug 2024, 23:21

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If N is a positive integer, is X*Y an even integer? (1) N = X/16 (2)

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amanvermagmat

02 Apr 2018, 05:19

7

4

2,806

by: SatvikVedala

30 Aug 2024, 20:57

ER

A round trip from A to B takes 2 hours by car for Sarah. If she drives

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

amanvermagmat

29 Jun 2018, 00:52

9

3

3,025

by: bumpbot

22 Aug 2024, 21:55

Marvin bought video games at a standard price of $40 per video game.

505-555 (Easy) | Arithmetic

505-555 (Easy) | Arithmetic hide tags

amanvermagmat

05 Jun 2018, 11:11

5

2

2,648

by: bumpbot

14 Aug 2024, 21:43

A and B are distinct positive integers. What is A^B - B^A ?

655-705 (Hard) | Exponents, Number Properties

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

amanvermagmat

26 Jul 2018, 11:39

4

2

1,513

by: bumpbot

13 Aug 2024, 14:39

A shop sells small photo frames for $10 a piece, and large photo frame

555-605 (Medium) | Arithmetic, Word Problems

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

amanvermagmat

08 Dec 2018, 22:14

5

2

1,960

by: bumpbot

19 Jul 2024, 16:30

ER

Which digit is at the [b]hundredth[/b] place of a positive number X?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

amanvermagmat

07 Mar 2018, 03:15

9

5

2,164

by: SirSanguine

07 Jul 2024, 07:49

Three coconuts have distinct weights. The coconuts are weighed two at

655-705 (Hard) | Arithmetic, Word Problems

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

amanvermagmat

09 May 2018, 11:15

10

2

3,052

by: bumpbot

27 Jun 2024, 12:06

ER

X is the sum of 5 consecutive positive integers a, b, c, d, e such

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

amanvermagmat

27 Jun 2018, 21:50

6

2

1,899

by: bumpbot

22 Jun 2024, 19:25

X and Y are two positive numbers. Is X > Y ? (1) (X+Y)/2 > Y (2)

605-655 (Medium) | Arithmetic, Percent and Interest Problems

605-655 (Medium) | Arithmetic, Percent and Interest Problems hide tags

amanvermagmat

13 Aug 2018, 22:54

8

6

3,618

by: sayan640

21 Jun 2024, 17:43

ER

If X is a real number, is -3<X<3? (1) Least integer which is greater

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

amanvermagmat

07 Jun 2018, 05:20

16

7

3,513

by: Bunuel

20 Jun 2024, 05:32

There are 15 boys and 12 girls in a class. Is the average weight of

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

amanvermagmat

07 May 2018, 23:15

4

3

3,187

by: bumpbot

17 May 2024, 07:59

A tank is fitted with an inlet pipe and an outlet pipe. This tank was

605-655 (Medium) | Arithmetic, Word Problems

605-655 (Medium) | Arithmetic, Word Problems hide tags

amanvermagmat

10 May 2018, 10:59

3

2,953

by: bumpbot

16 May 2024, 16:12

ER

If X is a real number, is X > 7? (1) X^2 > 49 (2) [X] = 7, where

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amanvermagmat

10 May 2018, 11:05

8

6

2,856

by: bumpbot

13 May 2024, 15:57

ER

X and Y are real numbers. Is X*Y negative? (1) (X+Y)^2 > 0 (2) X = Y

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

13 Jan 2019, 22:13

5

7

2,276

by: bumpbot

08 May 2024, 04:32

What is the value of N? (1) 10^N is the least positive integer which

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

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

amanvermagmat

08 Apr 2018, 05:11

4

3

2,316

by: bumpbot

23 Apr 2024, 22:28

ER

X, Y, Z, W are all positive.. What is the value of the ratio Z:W ?

555-605 (Medium) | Arithmetic, Fractions and Ratios

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

amanvermagmat

12 Mar 2018, 05:00

3

4

2,209

by: bumpbot

13 Apr 2024, 13:31

A list contains 5 positive integers. Are all the integers in this list

655-705 (Hard) | Arithmetic, Number Properties

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

amanvermagmat

31 May 2018, 02:34

10

4

3,096

by: bumpbot

23 Mar 2024, 17:10

A standard cubical dice has numbers 1 through 6 written on its faces.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

amanvermagmat

31 May 2018, 01:10

1

2

2,335

by: ruis

24 Feb 2024, 11:03

ER

A function "a#b" is defined for integers a and b such that a#b = a+b

655-705 (Hard) | Functions and Custom Characters, Number Properties

655-705 (Hard) | Functions and Custom Characters, Number Properties hide tags

amanvermagmat

17 Jul 2018, 23:50

5

3

1,970

by: bumpbot

04 Feb 2024, 01:36

ER

A company's director messaged an important notice on his phone to 'X'

655-705 (Hard) | Arithmetic, Word Problems

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

amanvermagmat

19 Jul 2018, 11:39

2

1,911

by: bumpbot

31 Jan 2024, 11:15

Is 25% of X greater than 2? (1) X/Y = 4/5; X and Y are both positive

655-705 (Hard) | Arithmetic, Number Properties

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

amanvermagmat

16 Jul 2018, 11:31

11

2

2,971

by: Oppenheimer1945

16 Jan 2024, 07:27

ER

Is the measure of an exterior angle of a scalene triangle ABC equal to

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

amanvermagmat

12 Apr 2018, 22:33

7

2

1,619

by: bumpbot

12 Jan 2024, 01:23

Three apples of distinct weights, are weighed two at a time, such that

705-805 (Hard) | Arithmetic, Word Problems

705-805 (Hard) | Arithmetic, Word Problems hide tags

amanvermagmat

09 May 2018, 11:31

7

2

2,454

by: bumpbot

09 Jan 2024, 10:44

If b is a non-zero integer and A = 5/(2.5 * 10^b), what is the value

705-805 (Hard) | Arithmetic, Number Properties

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

amanvermagmat

31 May 2018, 23:11

4

2

1,768

by: bumpbot

03 Jan 2024, 03:01

Amir sold a pen and a pencil in his shop. If both pen and pencil are

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

05 Jun 2018, 11:33

11

3

2,663

by: bumpbot

21 Dec 2023, 10:53

ER

Are all the three angles of triangle ABC less than 90 degrees?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

amanvermagmat

09 Nov 2018, 22:22

10

2

1,875

by: bumpbot

13 Dec 2023, 23:26

A company's marketing team has 60% males and rest females.

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

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

amanvermagmat

11 Aug 2018, 22:54

7

4

2,865

by: bumpbot

26 Nov 2023, 10:06

ER

X is the product of five integers a, b, c, d, e. Is X odd?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

amanvermagmat

16 May 2018, 22:53

3

7

2,282

by: bumpbot

19 Nov 2023, 12:03

What is the sum of three consecutive odd numbers a, b, c such that a <

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

21 Jul 2018, 10:46

4

2

1,863

by: bumpbot

18 Oct 2023, 04:00

ER

Is the positive integer N equal to 70? (1) Greatest common divisor of

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

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

amanvermagmat

17 Mar 2019, 11:36

4

2

2,910

by: bumpbot

06 Oct 2023, 22:14

P, Q, R receive fixed salary in a company. Salary of Q is what percent

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

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

amanvermagmat

06 Apr 2018, 05:30

9

2

3,491

by: bumpbot

02 Oct 2023, 03:56