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

79,115

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

188,754

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

488,337

by: bb

29 Aug 2025, 13:27

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In Alba language school, 30 students study Spanish or Finnish or both.

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

04 May 2026, 04:28

15

17

4,347

by: bumpbot

04 Mar 2025, 17:39

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If the unit digit of the positive integer n is 5, what is the tens dig

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

20 Aug 2020, 02:37

32

18

11,796

by: bumpbot

09 Dec 2024, 10:11

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Is the line l given by ax+by=c perpendicular to the line 2x+7y=3?

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

TheUltimateWinner

20 Aug 2020, 08:41

11

2,326

by: IanStewart

06 Sep 2020, 10:54

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Is x < 0? (1) x^2 3x (2) x^2 5x

655-705 (Hard) | Absolute Values, Inequalities

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

GMATinsight

20 Aug 2020, 09:13

9

3

2,091

by: Kalpit1212

23 Aug 2020, 12:20

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If j and k are positive integers, what is the value of j?

705-805 (Hard) | Absolute Values, Algebra

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

BrentGMATPrepNow

22 Aug 2020, 08:42

14

8

4,440

by: BrentGMATPrepNow

22 Aug 2020, 12:24

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Find number of zeroes at the right end in n!

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

tanmaykothari2710

22 Aug 2020, 07:55

5

4

2,089

by: bumpbot

26 Oct 2023, 11:33

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For a positive integer n, find number of zeroes at right end of n!

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

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

tanmaykothari2710

22 Aug 2020, 20:38

18

15

3,748

by: bumpbot

28 Jan 2024, 12:31

What is the slope of line l? 1) Line l is perpendicular to the line wi

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

TheUltimateWinner

23 Aug 2020, 11:27

1

3

1,899

by: TheGmatNiffler

24 Aug 2020, 05:34

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If a and b are integers, is the fraction a/b a terminating decimal?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Russ19

24 Aug 2020, 03:28

5

4

2,554

by: Gauravji21

12 Sep 2020, 13:14

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Is r an even integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

righthand

24 Aug 2020, 04:36

7

2

2,197

by: bumpbot

15 Feb 2024, 09:46

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If x+2yz= xyz, where x, y and z are positive integers, what is the val

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

nick1816

24 Aug 2020, 05:28

10

3

1,799

by: bumpbot

10 Jul 2022, 14:58

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HOT Competition: Is |x+y| > |x-y| ? (1) |x| > |y| (2) |x - y| < |x|

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

24 Aug 2020, 08:00

76

15

13,800

by: bumpbot

13 Nov 2025, 11:10

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HOT Competition: If x is not equal to y, is 1/(x - y) > xy?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

24 Aug 2020, 20:00

22

7

8,238

by: Crytiocanalyst

08 Oct 2021, 08:00

ER

What is the least common multiple of the positive integer x and 12?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

24 Aug 2020, 21:44

22

7

6,482

by: bumpbot

25 Nov 2023, 13:36

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Working at their respective constant rates, machine A makes 100 copies

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

Bunuel

24 Aug 2020, 21:44

41

9

7,245

by: bumpbot

26 Oct 2025, 11:37

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Find the number of zeroes at the right end in n! given n is a positive

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

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

TanmayKothari

24 Aug 2020, 22:28

2

4

1,879

by: IanStewart

25 Aug 2020, 08:40

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HOT Competition: If n is a positive integer, then n is a multiple of

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

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

Bunuel

25 Aug 2020, 08:00

59

4

9,584

by: MayankSingh

25 Aug 2020, 09:53

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b, c, d and e are positive integers. When b is divided by c, the quoti

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

BrentGMATPrepNow

25 Aug 2020, 08:53

16

4

3,371

by: bumpbot

16 Apr 2024, 08:56

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Every night, the Biased News Network (BNN) features more guests from

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

schrag2737

25 Aug 2020, 16:53

6

4

3,906

by: bumpbot

11 Jan 2024, 08:24

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HOT Competition: A function g is defined, for all positive integers x

805+ (Hard) | Functions and Custom Characters

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

Bunuel

25 Aug 2020, 20:00

22

5

6,629

by: bumpbot

31 May 2025, 23:25

ER

In triangle ABC (figure shown) drawn on a coordinate plane, A, B and C

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Bunuel

25 Aug 2020, 21:58

12

4

2,651

by: bumpbot

11 Dec 2022, 02:51

ER

If x, y, and z are non-negative integers, is 5(x + y) + z divisible by

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Sajjad1994

26 Aug 2020, 01:59

3

4

1,936

by: AritraKundu

05 Jun 2022, 21:35

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HOT Competition 26 Aug/8AM: What is the units digit of n^(p+1), where

705-805 (Hard) | Exponents, Remainders

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

Bunuel

26 Aug 2020, 08:00

23

4

8,628

by: bumpbot

02 Dec 2025, 07:13

ER

A "gamma sequence" is defined as an infinite sequence of pos

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Laila12618

26 Aug 2020, 09:06

15

6

3,446

by: bumpbot

18 Aug 2022, 09:46

ER

HOT Competition 26 Aug/8PM: If the length and breadth of rectangle ABC

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

26 Aug 2020, 20:31

96

7

5,524

by: debjit1990

26 Aug 2020, 22:15

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Until this coming April, the price of all Albanian products will equal

655-705 (Hard) | Percent and Interest Problems

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

DisciplinedPrep

26 Aug 2020, 23:32

9

3

2,484

by: IanStewart

17 Sep 2025, 08:11

ER

In 2003 Acme Computer priced its computers five times higher than its

655-705 (Hard) | Fractions and Ratios, Word Problems

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

Bunuel

26 Aug 2020, 23:37

52

11

16,276

by: Omnoui

08 Apr 2026, 04:57

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If m and n are integers, is (mn + 2)(mn + 3)(mn + 4) divisible by 12?

655-705 (Hard) | Multiples and Factors

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

Bunuel

26 Aug 2020, 23:37

18

12

5,821

by: bumpbot

12 Sep 2025, 07:32

ER

Is y equal to 25% greater than x? (I) 75% of x is equal to 60% of y. (

505-555 (Easy) | Percent and Interest Problems

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

Russ19

27 Aug 2020, 06:02

3

1,363

by: EgmatQuantExpert

27 Aug 2020, 08:43

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HOT Competition 27 Aug/8AM: What is the value of positive integer q?

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

Bunuel

27 Aug 2020, 08:00

51

14

8,830

by: bumpbot

18 Feb 2023, 05:25

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HOT Competition 27 Aug/8PM: If k is a positive integer, is k^(1/2) an

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

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

Bunuel

27 Aug 2020, 20:00

50

8

8,455

by: bumpbot

20 Oct 2024, 06:01

ER

HOT Competition (Instagram) 27 Aug/11:45PM: In the rectangular coordi

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Bunuel

27 Aug 2020, 23:45

20

10

4,462

by: Bunuel

21 Sep 2021, 02:27

ER

A certain mixture is made up of compounds A, B, and C. Compound B acco

805+ (Hard) | Mixture Problems

805+ (Hard) | Mixture Problems hide tags

thinkvision

29 Aug 2020, 05:58

35

7

6,803

by: bumpbot

28 Jun 2025, 12:28

ER

A company produces and sells two different products. Product A sells f

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

thinkvision

29 Aug 2020, 06:16

14

8

7,813

by: IanStewart

24 Sep 2021, 06:24

What is the value of x-y? (1) x + y = 11 (2) 4x - 4y = 8

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Russ19

30 Aug 2020, 07:59

4

3

1,858

by: abhijitpatil

30 Aug 2020, 09:43

ER

Is it possible for a wooden block in the shape of a rectangular solid

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

rakshitsood21

30 Aug 2020, 09:20

17

7

4,137

by: bumpbot

01 Aug 2025, 22:18

ER

Mr. Mike took a two-day automobile trip. What was her average speed in

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

Bunuel

31 Aug 2020, 00:13

3

6

3,424

by: RohitSaluja

14 Jan 2021, 20:47

ER

If n is a positive integer, what is the remainder when (7^n + 5) is di

605-655 (Medium) | Exponents, Remainders

605-655 (Medium) | Exponents, Remainders hide tags

Bunuel

31 Aug 2020, 00:13

18

6

8,740

by: bumpbot

14 Sep 2024, 09:53

ER

The shaded portion represents what percent of the area?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Pritishd

31 Aug 2020, 08:01

13

5

4,635

by: bumpbot

19 Dec 2022, 01:05

ER

In an isosceles triangle ABC,AD is a median

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

RakshithTN

31 Aug 2020, 10:02

5

3

1,983

by: lakshya14

08 Sep 2020, 15:20

ER

HOT Competition (Instagram) 31 Aug/11:00AM: On a certain farm, the rat

655-705 (Hard) | Fractions and Ratios

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

Bunuel

31 Aug 2020, 11:00

17

14

5,849

by: Bunuel

15 Nov 2021, 03:43

ER

If n ≠ 0, is m/n > 0 ? (1) n^m = 1 (2) m|n| < 0

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

01 Sep 2020, 02:40

15

5

5,153

by: bumpbot

16 Sep 2021, 09:22

ER

HOT Competition 1 Sep/8AM: If x 5 and x is a non-zero integer, what

805+ (Hard) | Absolute Values +3 tags

805+ (Hard) | Absolute Values, Inequalities, Number Properties, Roots hide tags

Bunuel

01 Sep 2020, 08:00

50

10

8,320

by: MonishBhawale

17 May 2023, 01:36

If N=a^5b^4c where a, b, and c are three distinct prime numbers

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

TheUltimateWinner

01 Sep 2020, 09:49

2

1,310

by: aloysiusgaul

03 Sep 2020, 14:06

A cuboid has a base area of 64 sq. units. What is the volume of the cu

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

RakshithTN

01 Sep 2020, 10:23

2

1

1,922

by: nick1816

01 Sep 2020, 11:47

In a xy plane, a circle with radius....

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

RakshithTN

01 Sep 2020, 10:30

4

1,957

by: Ankit137

08 Dec 2020, 20:37

ER

If A = 1200, what is the unique value of B? (1) The difference betwee

Poor Quality

Poor Quality hide tags

kawal27

01 Sep 2020, 11:14

1

2

3,466

by: IanStewart

02 Sep 2020, 07:36

ER

Is xy > 1? (1) x > 1/y (2) y is positive

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kawal27

01 Sep 2020, 12:16

3

1,348

by: IanStewart

02 Sep 2020, 07:22

ER

HOT Competition 1 Sep/8PM: If x and y are positive integers, is x + y

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

01 Sep 2020, 20:00

20

11

7,693

by: bumpbot

23 Jan 2024, 20:24

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HOT Competition 2 Sep/8AM: What is the probability of getting four tai

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

02 Sep 2020, 08:00

75

7

9,681

by: HarshavardhanR

03 Dec 2025, 07:57