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

78,761

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,548

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

487,977

by: bb

29 Aug 2025, 13:27

ER

If A, B & C can build a wall in 4 hours,working together,

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innocous

02 Sep 2013, 12:39

17

11

7,788

by: Amateur

30 Dec 2013, 15:21

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In Greenville last July, what was the average (arithmetic

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rohitgarg

14 May 2017, 01:34

5

11

12,938

by: ash99

22 Apr 2015, 11:32

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If distinct points A, B, C, and D form a right triangle ABC

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

far257

10 Aug 2011, 08:44

5

11

4,522

by: Bunuel

11 May 2015, 08:39

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If k is a positive constant and y = |x - k| - |x + k|, what

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12bhang

27 Feb 2014, 06:03

65

11

23,166

by: MathRevolution

21 Nov 2015, 10:25

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What is the area of equilateral triangle ABC?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

23 Jan 2015, 07:37

7

11

5,254

by: rhine29388

12 Apr 2016, 14:59

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Is 0 > ab?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

30 Dec 2014, 07:44

11

3,544

by: HKD1710

21 Aug 2016, 06:16

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If t ≠ 0, is r greater than zero?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

20 Apr 2017, 23:43

6

11

2,579

by: Mo2men

29 May 2017, 01:29

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What is area of triangle ABC?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

kanigmat011

18 Feb 2015, 03:20

17

11

4,195

by: bumpbot

08 Jul 2017, 02:01

ER

N is an integer. Is N negative ?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

guerrero25

18 Jun 2013, 15:49

10

11

3,168

by: akshayk

12 Aug 2017, 05:42

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if | r | != 1 is integer r even 1 r is not positive 2 2r

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

rxs0005

16 Apr 2014, 01:13

6

11

4,270

by: bumpbot

21 Dec 2017, 14:06

ER

If m is an integer greater than 9 but less than 20, is n greater than

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

25 Jan 2018, 23:51

9

11

2,965

by: niks18

04 Feb 2018, 07:08

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If x and y are positive integers, is y divisible by 3?

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

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

DeeptiM

05 Apr 2015, 04:56

20

11

9,856

by: aserghe1

31 Mar 2018, 13:01

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Does line L intersect with the circle centered at the

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

galiya

06 Jul 2011, 12:29

8

11

5,174

by: spetznaz

17 Apr 2018, 07:19

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The variables a, b, c, d, and e each represent measures of angles as

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

06 Jun 2017, 10:09

6

11

4,445

by: bumpbot

28 Aug 2018, 10:39

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The sum of the digits of a three-digit number is 11. What is the produ

555-605 (Medium) | Fractions and Ratios

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

Bunuel

09 Jul 2015, 04:07

13

11

9,812

by: bumpbot

14 Oct 2018, 18:23

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If p = 3q, is p^2 > q^2

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

vikrantgulia

03 Jan 2014, 08:01

14

11

5,793

by: sumisachan

16 Nov 2018, 04:14

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If x, y, and z are integers and (2^x)*(5^y)*z = 0.00064, what is the

605-655 (Medium) | Algebra, Exponents

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

Bunuel

06 Nov 2014, 09:18

22

11

11,972

by: BrentGMATPrepNow

04 Apr 2019, 09:54

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What is the units digit of z^x, where x and z are positive integers?

655-705 (Hard) | Exponents, Number Properties

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

mangamma

28 Apr 2019, 09:01

14

11

4,161

by: ccooley

04 Jun 2019, 11:12

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If m, n, and p are three-digit integers such that m + n = p, what is

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

RonPurewal

03 Aug 2017, 06:30

16

11

3,200

by: menonrit

23 Jun 2019, 07:16

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If a, b, and c are positive, is a + b > c? (1) a/c > b > 1 (2) ab > ac

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

17 Jun 2018, 04:40

8

11

3,463

by: LeoN88

26 Jun 2019, 22:40

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If |x – 3| = 5, what is the value of x?

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

Bunuel

03 Nov 2016, 02:22

6

11

4,018

by: bumpbot

04 Jul 2019, 05:01

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Pat bought a new car for P dollars and sold it later for M dollars. Th

555-605 (Medium) | Percent and Interest Problems

555-605 (Medium) | Percent and Interest Problems hide tags

Bunuel

29 Aug 2019, 01:09

9

11

3,100

by: snoep

29 Aug 2019, 12:33

ER

On each lab that René completed he received either 100 points or 85 po

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

14 Apr 2015, 04:49

9

11

5,535

by: bumpbot

06 Sep 2019, 04:24

ER

What is the value of |a| - |b| ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

28 May 2015, 06:20

11

4,437

by: bumpbot

11 Dec 2019, 22:54

ER

In triangle ABC, what is the measurement of angle C?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

19 Dec 2019, 00:21

10

11

4,765

by: Bunuel

19 Dec 2019, 23:28

ER

If a is positive integer, can a be expressed as the product of two int

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

26 Dec 2016, 11:00

5

11

3,298

by: SuryaNouliGMAT

15 Jan 2020, 01:39

ER

What is the value of a + b/(ab)^1/2? (1) a is 4 times b.

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Sajjad1994

22 Jan 2020, 00:39

8

11

2,300

by: Bunuel

22 Jan 2020, 09:26

ER

If x = 5 y, is x > 0?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

banksy

14 Mar 2011, 16:34

4

11

4,900

by: CrackverbalGMAT

23 Jan 2020, 03:57

ER

If |a - b| = |b - c| = 2 , what is |a - c| ?

655-705 (Hard) | Absolute Values, Inequalities

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

AndreG

09 Oct 2010, 04:09

20

11

6,770

by: bumpbot

06 Feb 2020, 22:00

ER

Is abc < 0?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

GMATBusters

15 Feb 2020, 19:32

3

11

2,239

by: bM22

16 Feb 2020, 07:04

ER

If z is an integer, is z even? (1) (z + 7)/3 = 2m + 1, where m is an

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

17 Feb 2020, 02:01

11

3,574

by: vthatha

17 Feb 2020, 23:12

ER

Austin and Erica together sold 100 tickets for the play. How many of

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

02 Mar 2020, 01:05

12

11

2,051

by: unraveled

02 Mar 2020, 23:56

ER

A school has 60 students. Each student studies either Cantonese or Fre

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

16 Jul 2015, 01:19

4

11

8,519

by: Kinshook

18 Mar 2020, 09:45

ER

In the diagram below, PQ is a diameter of the circle having center at

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

23 Jul 2017, 23:18

21

11

4,933

by: fskilnik

20 Apr 2020, 09:45

ER

If m = n^(p+2q)/((n^q)^2), what is the value of m?

555-605 (Medium) | Algebra, Exponents

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

GMATBusters

10 May 2020, 10:57

4

11

2,763

by: StevenA

10 May 2020, 05:24

ER

If x and y are prime numbers, and a and b are positive integers, is x/

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

30 Jun 2020, 01:56

9

11

3,859

by: Neha2404

30 Jun 2020, 22:20

ER

If Y is a real number, is Y > 10? (1) {Y} = 10, where {Y} denotes the

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amanvermagmat

10 May 2018, 11:10

7

11

2,169

by: bumpbot

06 Aug 2020, 02:12

ER

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

2,317

by: IanStewart

06 Sep 2020, 10:54

ER

Does p^2 = q if p is a prime number?

655-705 (Hard) | Algebra, Number Properties

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

babusona

26 Apr 2016, 07:26

9

11

8,597

by: bumpbot

07 Sep 2020, 01:10

ER

n is the product of least and greatest 6 consecutive integers. What is

505-555 (Easy) | Number Properties, Statistics and Sets Problems

505-555 (Easy) | Number Properties, Statistics and Sets Problems hide tags

anuragsingal

05 Jan 2015, 04:15

8

11

9,286

by: Tonkotsu

19 Oct 2020, 19:40

ER

Is x > 4?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

rxs0005

26 Jan 2011, 05:59

3

11

6,509

by: Basshead

31 Oct 2020, 04:58

ER

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

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

sarb

14 Jun 2012, 01:07

9

11

5,823

by: Basshead

31 Oct 2020, 12:43

ER

If xy < 4, is x < 2 ? (1) y > 1 (2) y > x

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

18 Mar 2012, 06:25

16

11

9,784

by: Bunuel

03 Nov 2020, 12:01

ER

Is x + y > 1?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

TheUltimateWinner

26 Oct 2017, 03:07

19

11

3,442

by: ism1994

17 Nov 2020, 00:25

ER

If (x - y)^2 = x^2 - y^2, what is the value of the non-zero integer xy

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Jan 2020, 01:46

17

11

12,713

by: Basshead

03 Dec 2020, 17:20

ER

A candy manufacturer decided to decrease the weight of each candy bar,

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 Jan 2016, 03:21

12

11

6,322

by: bumpbot

05 Dec 2020, 01:26

ER

A terminating decimal is defined as a decimal that has a finite number

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

11 Dec 2020, 01:15

10

11

3,920

by: abhishekmayank

17 Dec 2020, 00:45

ER

If y does not equal 0. Does x = 0 ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

rxs0005

07 Oct 2014, 07:55

13

11

9,701

by: bumpbot

18 Dec 2020, 11:28

ER

Is a positive? (1) a^6 < a (2) a^5 < a

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Aug 2018, 03:33

14

11

7,920

by: TarunKumar1234

16 Jan 2021, 08:55

ER

In Washington School, 150 students study physics or biology

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

enigma123

15 Mar 2012, 16:04

19

11

8,474

by: Hoozan

27 Jan 2021, 00:11