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

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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

188,726

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

488,277

by: bb

29 Aug 2025, 13:27

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X and Y are both positive integers whose combined factors include 3 an

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Sajjad1994

09 Apr 2019, 10:24

8

7

2,600

by: aserghe1

09 Jun 2018, 06:44

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If x is a positive integer, is x/4 an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

27 Oct 2016, 05:22

1

4

2,600

by: ScottTargetTestPrep

27 Oct 2016, 17:27

ER

Jane drove at a constant speed from point A to point B and back to

655-705 (Hard) | Distance and Speed Problems

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Bunuel

01 Oct 2024, 01:30

11

3

2,601

by: bumpbot

27 Oct 2025, 07:02

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If m and n are non-negative integers, what is the value of mn ?

605-655 (Medium) | Exponents, Number Properties

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Bunuel

24 Apr 2023, 06:15

6

3

2,601

by: bumpbot

03 Oct 2024, 19:31

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What is the value of x – y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 May 2017, 02:44

2

5

2,601

by: utkarshthapak

29 May 2017, 03:54

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Two cars, A and B, each traveled a distance of 200 miles. Did car A us

Sub 505 (Easy) | Distance and Speed Problems

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Bunuel

15 Oct 2019, 23:15

3

4

2,602

by: bumpbot

23 Oct 2024, 10:23

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There is a triangle ACE shown as above figure. what is the measurement

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

MathRevolution

01 Jun 2016, 18:12

8

3

2,602

by: bumpbot

07 Apr 2022, 19:07

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Given that a,b,c and d all lie between 0 and -1

805+ (Hard) | Coordinate Plane, Inequalities

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EncounterGMAT

23 Oct 2018, 22:21

7

8

2,602

by: Marcotedeschi

09 Jun 2021, 06:49

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What is the value of a positive integer x? (1) x divided by 3 leaves

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

14 Apr 2021, 02:30

6

2,603

by: vallequalle

17 Mar 2026, 07:47

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How many prime factors of x are also prime factors of y?

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

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

Bunuel

25 Jul 2016, 10:17

4

6

2,603

by: bumpbot

16 Sep 2024, 18:56

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If a is an integer, is a - 1 even? (1) a - 2 is an even integer

Sub 505 (Easy) | Number Properties

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Bunuel

02 Feb 2022, 02:30

4

3

2,603

by: zhanbo

02 Feb 2022, 22:27

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Is x > y ? (1) x >= (y - 2)^2 - 1 (2) y < |x|

705-805 (Hard) | Absolute Values

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Bunuel

01 May 2020, 03:17

14

7

2,603

by: ShankSouljaBoi

02 May 2020, 10:24

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What is the remainder when a positive integer w is divided by 2?

555-605 (Medium) | Remainders

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Bunuel

25 Oct 2016, 23:37

1

5

2,604

by: GMATinsight

02 Oct 2020, 00:20

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Does x = y?

555-605 (Medium) | Algebra

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Bunuel

31 Jan 2016, 08:23

2

4

2,604

by: Donnie84

03 Feb 2016, 19:52

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The variables a and b represent the hundreds digits of the two numbers

655-705 (Hard) | Inequalities

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Bunuel

27 Oct 2021, 07:30

1

6

2,605

by: bumpbot

26 Dec 2022, 12:51

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Is rst > 1?

555-605 (Medium) | Inequalities

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Bunuel

14 Jun 2017, 06:49

2

7

2,605

by: JeffTargetTestPrep

06 Jul 2017, 18:30

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Nate has one credit card and no outstanding loans. For an $8,000

705-805 (Hard) | Word Problems

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jenneyennej

20 Nov 2025, 05:06

26

13

2,606

by: msing454

05 Jan 2026, 04:05

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In the figure above, if PQ = x, is the area of triangle PQR equal to

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

29 Aug 2019, 06:40

5

3

2,606

by: bumpbot

29 Nov 2022, 03:10

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If x, y, p and q are positive integers, is x^p a factor of y^q?

555-605 (Medium) | Exponents, Multiples and Factors

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

Bunuel

24 Sep 2018, 06:03

2

3

2,606

by: Resily

07 Sep 2022, 11:12

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What is 1/X + 2/Y ? (1) X + Y = 16 (2) XY = 48

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Feb 2021, 09:24

2

3

2,606

by: Bunuel

22 Feb 2021, 09:15

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What is the value of x in the triangle above?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

29 Aug 2019, 05:50

1

6

2,606

by: Kinshook

29 Aug 2019, 10:29

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If x is a positive integer, is x odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

12 Apr 2016, 02:32

4

5

2,606

by: bumpbot

02 May 2019, 19:02

ER

In the equation x^2 + bx + c = 0, where b and c are constants, what is

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

PyjamaScientist

25 Oct 2021, 09:22

11

4

2,607

by: mahikapb

12 Sep 2025, 04:00

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If the positive integer x is a multiple of 24 and the positive integer

655-705 (Hard) | Multiples and Factors

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Bunuel

14 Apr 2021, 05:00

4

3

2,607

by: bumpbot

09 Feb 2025, 10:50

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z is an integer such that |z| < 6. Is z positive? (1) |z - 2| > 3 (2)

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

20 Feb 2023, 06:31

3

8

2,607

by: SaquibHGMATWhiz

28 Feb 2023, 23:49

ER

Does x + y = xy ? (1) The product of x and a positive integer, z, is

555-605 (Medium) | Algebra, Inequalities

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

Bunuel

29 Jun 2021, 01:30

11

8

2,607

by: IanStewart

29 Jun 2021, 20:06

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Is 10x > x^10 ? (1) x is a positive number. (2) x^2 – 1 < 0

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

21 Sep 2017, 05:03

3

6

2,607

by: Mo2men

22 Sep 2017, 05:18

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Is xy < 100?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

souvonik2k

01 Nov 2016, 08:39

2

2,607

by: souvonik2k

01 Nov 2016, 08:47

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If f(x) = x^3 + kx^2 − 4x, what is the value of k?

805+ (Hard) | Algebra, Functions and Custom Characters

805+ (Hard) | Algebra, Functions and Custom Characters hide tags

Bunuel

06 Aug 2017, 01:04

2

3

2,608

by: bumpbot

26 Dec 2024, 03:18

ER

If the average (arithmetic mean) of five positive numbers is 30, how

555-605 (Medium) | Word Problems

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Bunuel

01 Jan 2018, 10:43

4

2,608

by: vipulshahi

30 May 2020, 06:50

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Given that m is an integer, Is (m)(m + 1)(m + 2) divisible by 24?

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

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

RenB

04 Oct 2023, 17:45

8

4

2,609

by: DylanD

18 Aug 2025, 10:50

ER

Water is pumped into a partially filled swimming pool at a constant

Sub 505 (Easy) | Work and Rate Problems

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Bunuel

21 Jul 2021, 02:30

2

1

2,609

by: Nikhil099

23 Aug 2021, 08:20

ER

The above figure shows a sector of a circle. What is the area of the s

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

MathRevolution

11 Oct 2018, 01:35

5

9

2,609

by: fskilnik

17 Oct 2018, 12:12

ER

A terminating decimal is a number with a finite number of nonzero digi

705-805 (Hard) | Number Properties

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Bunuel

17 Sep 2021, 01:30

6

3

2,610

by: TestPrepUnlimited

18 Sep 2021, 07:43

ER

If xy/5 is an integer, is x divisible by 5?

555-605 (Medium) | Multiples and Factors

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

Bunuel

25 Dec 2016, 02:39

3

5

2,610

by: MathRevolution

07 Jan 2018, 13:54

ER

Is x^2/y > 0 ? (1) -4 < x < 1 (2) 1 < y < 4

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

BrentGMATPrepNow

05 Jun 2022, 08:58

10

3

2,612

by: bumpbot

20 Mar 2025, 06:16

ER

What is the value of x ? (1) 3x = 30 (2) x + y = 40

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

15 Oct 2022, 09:00

2

2,613

by: bumpbot

13 Nov 2025, 21:57

ER

If p, q, r and s are positive integers, and q × s < 130, what is the

555-605 (Medium) | Remainders

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Bunuel

30 Jul 2017, 22:44

10

4

2,613

by: bumpbot

08 May 2024, 18:05

ER

If x and y are positive integers such that xy = 30, what is the value

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

10 Apr 2020, 05:18

1

3

2,613

by: Archit3110

10 Apr 2020, 07:29

ER

If n is a positive integer, what is the units digit of n!

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

15 Apr 2016, 01:07

3

2,613

by: bumpbot

28 Jul 2017, 22:57

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

505-555 (Easy) | Arithmetic

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amanvermagmat

05 Jun 2018, 11:11

5

2

2,614

by: bumpbot

14 Aug 2024, 21:43

ER

If the ratio of the number of men to the number of women is the same

555-605 (Medium) | Fractions and Ratios

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Bunuel

01 Jan 2021, 09:45

5

3

2,614

by: bumpbot

10 May 2023, 22:26

ER

In the figure above, O is the center of the circle. What is the degree

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

01 Dec 2021, 05:00

2

2,614

by: hadimadi

27 Dec 2021, 03:29

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Number XYZ is the product of positive integer n and 9. Is x + y + z =

655-705 (Hard) | Algebra, Number Properties

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

Bunuel

25 Feb 2021, 01:15

12

5

2,614

by: EgmatQuantExpert

28 Feb 2021, 03:16

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When processing iron ore into stainless steel, high-purity oxygen

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rajatchopra1994

06 Nov 2020, 00:29

2

2,614

by: IanStewart

06 Nov 2020, 10:26

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In triangle ABC, the measure of angle B is 80 as shown in the figure

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

25 Feb 2020, 03:29

1

2,614

by: GMATWhizTeam

25 Feb 2020, 06:09

ER

If a and b are positive integers, is a + b even?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 Dec 2016, 07:25

1

10

2,614

by: harikrish

11 Jul 2017, 09:23

ER

In parallelogram PQRS above, what is the sum a+b+c? (1) c=3b (2) a=36

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

07 Feb 2022, 02:30

6

5

2,615

by: TarunKumar1234

07 Feb 2022, 19:53

ER

In triangle ABC above, if ∠BAD and ∠ADB have measures of 2n°, and if

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

29 Aug 2016, 03:59

4

3

2,616

by: rohit8865

05 Sep 2016, 20:50

ER

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

2,617

by: salilbagai

30 Jun 2024, 11:30