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

179

15

79,081

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

857

24

188,730

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

488,295

by: bb

29 Aug 2025, 13:27

ER

Is positive integer n a multiple of 6? (1) 3 is a factor of n. (2) 3n

555-605 (Medium) | Multiples and Factors

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

Bunuel

08 May 2019, 00:33

14

4

2,618

by: bumpbot

08 Apr 2025, 16:09

ER

If p and q are nonnegative integers, is √x an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

30 Apr 2016, 03:47

5

6

2,618

by: bumpbot

17 Jan 2024, 11:01

ER

If 2abc ≠ 0, is 2/a > b/c ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

CAMANISHPARMAR

16 Apr 2020, 21:55

11

5

2,618

by: bumpbot

11 Dec 2023, 02:58

ER

What is the sum of 4 consecutive odd integers? 1) Sum of the four int

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

GMATinsight

30 Jan 2021, 01:06

8

4

2,618

by: bumpbot

28 Aug 2023, 05:48

ER

What is the measure of angle A of hexagon ABCDEF? (1) For hexagon AB

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

amanvermagmat

16 May 2018, 22:23

7

4

2,618

by: dushyant099

25 Aug 2022, 10:29

ER

A man's total travel expense over 3 days was $42. What was his median

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

25 Nov 2019, 02:59

5

2,618

by: bumpbot

12 Aug 2022, 09:55

If a is not equal to b and a^3=b^2, what is the value of b^4 ?

705-805 (Hard) | Exponents, Roots

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

Kaushik786

08 Mar 2021, 05:07

7

5

2,618

by: SantoshN

01 Jul 2021, 07:21

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What is the number of positive integers that divide k^2 but do not div

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

31 Jan 2022, 02:30

12

3

2,619

by: salilbagai

30 Jun 2024, 11:30

ER

In the triangle above is RP > PQ ?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

28 May 2017, 01:50

2

7

2,619

by: bumpbot

25 Jul 2022, 16:06

ER

The people in a room are lined up from youngest to oldest. The age of

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

15 Aug 2019, 00:48

3

2,619

by: Bunuel

12 Sep 2019, 01:39

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Does z = 3 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 May 2017, 01:52

4

14

2,619

by: ArjunJag1328

17 Sep 2018, 04:30

ER

Is the positive integer N divisible by 12?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

gmatophobia

05 Feb 2023, 09:39

17

5

2,620

by: ADisHere

09 May 2024, 06:25

ER

A rectangle has length y feet and width z feet. What is its area in sq

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

11 Oct 2019, 02:03

1

4

2,620

by: bumpbot

19 Jul 2022, 19:58

ER

If f(x) = ax^2 + 3x + 1, where a 0, is a < 0 ?

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Bunuel

12 Sep 2022, 08:08

11

3

2,621

by: bumpbot

15 Oct 2023, 17:21

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If x > 1 and y > 1, is x < y? (1) x^2 < xy + x (2) xy/(y(y − 1)) < 1

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

05 Nov 2018, 00:15

7

5

2,621

by: bumpbot

28 Jun 2023, 02:06

ER

if [b]a[/b] is a positive integer, is there

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

GMATBusters

25 Jul 2020, 19:08

7

10

2,622

by: bumpbot

11 Apr 2024, 06:39

If P and Q are non zero integers, is P+Q even? (1) P^Q < 0 (2) 3*P

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

amanvermagmat

26 Jul 2018, 11:49

4

3

2,622

by: bumpbot

07 May 2021, 06:18

ER

If p is a positive integer, Is integer m a multiple of 6?

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

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

Bunuel

06 Dec 2016, 00:46

9

4

2,622

by: yezz

06 Dec 2016, 04:15

ER

Find the greater of the two roots of the equation x^2 + bx + c

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

gmatophobia

16 Feb 2023, 00:13

12

9

2,623

by: amansoni5

20 Jun 2025, 22:44

ER

If N is a positive integer, not including N, how many factors does N

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

03 Jul 2018, 10:58

14

3

2,624

by: bumpbot

07 Apr 2022, 04:47

ER

If x is a positive number, is xy a positive number? (1) y ≤ x (2) y ≥

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

25 Sep 2018, 05:37

2

3

2,626

by: bumpbot

01 Aug 2023, 04:58

ER

What is the value of a + b? (1) a^2 + b^2= 9 – 2ab (2) a = 4 + b

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

10 Sep 2017, 04:43

2

2,626

by: bumpbot

10 Apr 2021, 12:29

ER

If x is a positive integer, is (10x - 1) divisible by the positive int

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

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

Bunuel

04 Dec 2019, 02:38

11

3

2,627

by: bumpbot

24 Jun 2025, 04:06

ER

If the median of the 5 numbers is 20, is the range of the 5 numbers

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

24 Jan 2024, 02:30

7

3

2,627

by: bumpbot

27 May 2025, 05:58

If p is a two digit prime number, what is the value of p?

655-705 (Hard) | Number Properties, Remainders

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

Carcass

02 Sep 2022, 00:07

4

2,627

by: bumpbot

19 Aug 2024, 10:40

ER

Does a = 0? (1) a^3(8.12) = a^4(8.12) (2) ab ≠ b

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

08 Nov 2019, 01:48

15

18

2,627

by: bumpbot

27 May 2023, 02:53

What is the value of |x - 2|? (1) x^2 - 4x = 12 (2) x < 2

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

TheNightKing

13 Jul 2019, 18:11

12

6

2,627

by: bumpbot

11 Mar 2021, 02:40

ER

If a and b are positive integers is a < 20 < b < 30?

605-655 (Medium) | Inequalities, Number Properties

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

TarunTilokani

12 Jun 2019, 06:41

3

6

2,628

by: Shorub

12 Jun 2019, 06:05

ER

Is n < 0 ? (1) n - 1 < 0 (2) |3 - n| > |n + 5|

555-605 (Medium) | Absolute Values, Inequalities

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

MathRevolution

29 Jan 2018, 04:29

4

2,628

by: ccooley

31 Jan 2018, 13:04

ER

Does w - v = 0?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

BrentGMATPrepNow

17 Oct 2022, 07:47

7

4

2,629

by: bumpbot

18 Jan 2024, 03:54

A, B, C, D and E are five positive integers such that D is the average

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

KANNUPRIYA17

26 Dec 2020, 00:00

2

4

2,629

by: gmatophobia

24 Dec 2021, 00:25

ER

If x and y are non-zero integers. Is

655-705 (Hard) | Absolute Values, Inequalities

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

GMATBusters

14 Mar 2020, 19:46

6

9

2,630

by: bumpbot

24 Mar 2025, 23:52

ER

In the xy-plane, the line K passes through a point (a,b), where a>0 an

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

MathRevolution

29 Jun 2018, 01:16

10

3

2,630

by: bumpbot

07 Oct 2023, 13:16

ER

What is the area of the triangle PQR?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

14 Sep 2018, 01:41

7

3

2,630

by: Praful_0810

15 Jul 2023, 04:52

ER

The midpoints of 3 sides of the triangle ABC are respectively D, E, F.

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

31 Jan 2023, 07:01

4

3

2,630

by: Bunuel

08 Mar 2023, 12:30

ER

If a and b are positive integers, what is the greatest common divisor

655-705 (Hard) | Multiples and Factors

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

Bunuel

25 Apr 2022, 01:30

4

2

2,630

by: kratos0906

25 Aug 2022, 09:12

ER

If a and b are integers and 4a + b is an odd number, is a^2/b > 0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

EBITDA

12 Jul 2016, 01:38

3

7

2,630

by: bumpbot

29 May 2019, 02:05

ER

A certain number of distinct digits are written on a piece of paper. U

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

gmatophobia

21 Jan 2022, 01:43

10

3

2,631

by: bumpbot

16 Jan 2024, 02:25

ER

What is the difference between the number of chocolates with Alice and

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

19 Jul 2018, 11:22

5

2

2,631

by: Ashu9876

26 Mar 2023, 23:35

ER

If abc ≠ 0 and a/b = b/c, does b = c ? (1) b/c = c/a (2) a = 1

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

02 May 2019, 01:18

5

1

2,631

by: Archit3110

02 May 2019, 03:47

ER

If 0 < a < b < c, does the median of a, b, and c equal the mean of a,

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

13 Apr 2018, 01:21

6

5

2,632

by: Bunuel

31 Oct 2021, 02:45

ER

What is the area of the circle shown above with center O?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Carcass

10 Jan 2022, 07:52

6

1

2,633

by: $!vakumar.m

24 Mar 2023, 11:03

ER

If a and b are integers, is a + b odd? (1) a/b is odd (2) ab is even

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

22 Jun 2020, 02:45

4

3

2,633

by: sambitspm

26 Jun 2020, 21:11

If ab cannot equal 0, what is the value of 2b/a?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

BostonTC2018

09 May 2021, 13:03

3

2,634

by: BostonTC2018

09 May 2021, 15:09

ER

If x and y are positive numbers, x is what percent of y?

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

04 Jun 2020, 07:50

1

4

2,634

by: Archit3110

05 Jun 2020, 07:37

ER

Is the positive integer N a prime number?

555-605 (Medium) | Multiples and Factors

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

pushpitkc

30 Sep 2017, 10:26

2

2,634

by: MathRevolution

01 Oct 2017, 14:09

ER

If (x - 1)(x - 2) = 0, x = ?

Poor Quality

Poor Quality hide tags

kuralaysn

13 Feb 2017, 00:43

2

3

2,634

by: Bunuel

13 Feb 2017, 02:23

ER

If a and b are positive integers, what is the remainder when 9^2a+b

555-605 (Medium) | Multiples and Factors

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

benejo

05 Apr 2018, 06:32

12

6

2,635

by: bumpbot

20 Oct 2024, 06:13

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

2,635

by: bumpbot

21 Dec 2023, 10:53

ER

How many values of x satisfy this equation? A*x+B=B

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

frombelarus

03 Apr 2020, 00:07

7

2,635

by: bumpbot

21 Nov 2021, 06:25