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

175

15

78,533

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,416

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

487,759

by: bb

29 Aug 2025, 13:27

ER

Is (7x)^1/2 an integer?

805+ (Hard) | Number Properties, Roots

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

alex1233

05 Jun 2013, 03:49

209

16

22,972

by: bumpbot

06 Apr 2025, 04:50

ER

What is the value of the two-digit positive integer n?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

alex1233

16 Mar 2013, 14:04

118

14

16,443

by: bumpbot

01 Mar 2025, 11:07

What is the value of abcd+a+b+c+d ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

alex90

25 Apr 2013, 05:31

73

6

13,665

by: bumpbot

17 Aug 2024, 03:27

ER

Ten years ago, scientists predicted that the animal z would

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

alexBLR

13 Feb 2010, 16:38

81

19

20,940

by: bumpbot

16 Aug 2025, 10:13

What is the value of r?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Alexey1989x

05 May 2017, 02:07

10

6

2,910

by: bumpbot

31 Dec 2025, 03:33

ER

In a certain year, the difference between Mary's and Jim's annual sala

655-705 (Hard) | Arithmetic, Word Problems

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

1, 2

alimad

15 Jul 2019, 04:53

410

36

67,108

by: bumpbot

29 May 2025, 18:26

ER

List S and list T each contain 5 positive integers, and for each list

505-555 (Easy) | Statistics and Sets Problems

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

alimad

20 Oct 2019, 01:18

36

7

17,888

by: bumpbot

16 Oct 2024, 12:57

ER

What is the value of a + b? (1) |a| = -|b| (2) |b| = -|a|

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

alimad

14 Jun 2007, 12:02

38

2

16,766

by: bumpbot

28 Oct 2023, 06:43

ER

Is x 1/16 greater than 5/8?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

alimad

04 Nov 2007, 08:19

30

8

17,305

by: bumpbot

06 Mar 2023, 12:43

ER

If p is a prime number greater than 2, what is the value of p ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

1, 2

aljatar

28 Mar 2010, 05:56

142

20

62,859

by: bumpbot

30 Dec 2025, 09:12

ER

If x and y are positive integers, is 2x a multiple of y?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

allabout

02 Nov 2013, 05:28

68

11

24,892

by: bumpbot

30 Mar 2025, 07:12

ER

Material A costs $3 per kilogram, and Material B costs $5 per kilogram

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

1, 2

alltimeacheiver

05 Aug 2017, 00:16

620

23

90,923

by: Aboyhasnoname

24 Jun 2025, 01:08

ER

If x is a positive integer, is the remainder 0 when 3^x + 1 is divided

555-605 (Medium) | Exponents, Remainders

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

alltimeacheiver

04 Feb 2021, 09:38

85

8

30,173

by: ManifestDreamMBA

04 May 2025, 11:06

ER

In the xy-plane, the line with equation ax + by + c = 0, where abc ≠ 0

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

alltimeacheiver

11 Feb 2011, 03:22

65

4

21,919

by: bumpbot

15 Jun 2024, 11:52

ER

If x^(1/3) is a positive integer, does x^(1/3) have more than two dist

655-705 (Hard) | Exponents, Multiples and Factors

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

alphabeta1234

08 Apr 2012, 19:36

22

6

6,117

by: bumpbot

11 Sep 2025, 03:11

ER

Triangle T has vertices of (-2,6), (6,2) and (0,k) where k

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

alphabeta1234

12 Jul 2012, 17:29

14

10

6,049

by: prabhakar09

19 May 2016, 19:12

ER

A school has a students and b teachers. If a < 150, b < 25, and classe

805+ (Hard) | Multiples and Factors, Word Problems

805+ (Hard) | Multiples and Factors, Word Problems hide tags

alphak3nny001

09 Sep 2018, 09:37

17

6

6,249

by: bumpbot

28 Dec 2024, 20:04

ER

If a_n= 0.5* a_n+1, what is the value of a_7

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

alphonsa

02 Aug 2014, 01:56

19

2

4,115

by: bumpbot

05 Apr 2026, 10:46

ER

Steve spent a total of $36 on transportation for 3 days. What was his

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

alphonsa

09 Sep 2014, 23:05

13

3

3,440

by: bumpbot

23 Jan 2026, 02:27

ER

A set has a series of numbers such as a that

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

alphonsa

02 Aug 2014, 01:42

18

6

4,427

by: bumpbot

25 Nov 2025, 00:09

ER

Is the positive integer P prime?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

alphonsa

15 Aug 2014, 08:51

8

4

3,596

by: bumpbot

26 Sep 2025, 05:16

ER

Is the positive integer P a prime number?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

alphonsa

18 Aug 2014, 07:59

24

9

5,767

by: bumpbot

22 Sep 2025, 22:37

ER

Is (x - y) divisible by 3?

655-705 (Hard) | Multiples and Factors

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

alphonsa

21 Aug 2014, 00:15

2

5

4,292

by: bumpbot

17 Aug 2025, 05:58

ER

In a garden, the ratio of the number of apples, bananas and cherries i

655-705 (Hard) | Fractions and Ratios

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

alphonsa

29 Aug 2014, 05:17

11

4

4,305

by: bumpbot

14 Nov 2024, 02:27

ER

If x = 1! + 2! + 3! + ... + n! then what is the remainder

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

alphonsa

18 Aug 2014, 08:59

32

8

5,471

by: bumpbot

29 Aug 2024, 16:36

ER

How long will it take 9 men and 6 women to complete a given task?

805+ (Hard) | Work and Rate Problems

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

alphonsa

31 Aug 2014, 04:18

61

9

8,021

by: sayan640

27 May 2024, 22:04

ER

If x and y are positive integers, is x an even integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

alphonsa

18 Aug 2014, 09:35

7

5

3,492

by: bumpbot

28 Dec 2023, 21:24

ER

Is P prime? (1) P is divisible by 2 (2) P is divisible by 4.

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

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

alphonsa

11 Oct 2023, 00:02

8

3

4,203

by: bumpbot

10 Oct 2023, 22:22

ER

What is the remainder when the positive integer N is divided by 12?

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

alphonsa

30 May 2016, 14:15

6

7

6,810

by: bumpbot

14 Feb 2023, 06:30

ER

Is y^2 + 7y + xy even?

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

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

alphonsa

21 Aug 2014, 00:13

33

11

7,724

by: bumpbot

12 May 2022, 19:24

ER

What is the greatest common divisor of positive integers m

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

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

alphonsa

18 Aug 2014, 08:02

22

4

4,864

by: Pritishd

29 Sep 2021, 05:05

ER

If x and y are two distinct positive integers, is x/y an int

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

alphonsa

18 Aug 2014, 09:42

5

10

4,507

by: IanStewart

18 May 2019, 17:31

Integers a and b are such that a - b > 0. Is |a| > |b| ?

705-805 (Hard) | Absolute Values, Inequalities

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

alphonsa

12 Aug 2014, 07:47

7

4

3,380

by: Archit3110

05 Mar 2019, 12:07

ER

Is the positive number 'x' an integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

alphonsa

15 Aug 2014, 09:00

7

6

3,169

by: bumpbot

19 Feb 2019, 01:18

ER

Is p^2 - 1 divisible by 12?

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

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

alphonsa

15 Aug 2014, 09:13

13

8

9,695

by: KanishkM

05 Jan 2019, 09:04

ER

Is x^(k+1) > x^k?

705-805 (Hard) | Absolute Values +2 tags

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

alphonsa

18 Aug 2014, 09:47

17

6

3,801

by: GyMrAT

20 Sep 2018, 23:10

ER

Is |x| < 5?

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

alphonsa

18 Aug 2014, 09:10

16

10

4,581

by: dabaobao

15 Jun 2018, 08:27

ER

A charity planned to distribute 'n' pens (n<300) to students

Poor Quality

Poor Quality hide tags

alphonsa

02 Aug 2014, 01:31

2

2,166

by: IanStewart

23 Jun 2015, 13:32

ER

What is the value of x^6 + x^(-6) ?

Poor Quality

Poor Quality hide tags

alphonsa

18 Aug 2014, 09:21

3

2

2,576

by: Bunuel

18 Aug 2014, 09:31

ER

A certain IT department of fewer than 15 people hires coders

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

Alterego

12 Aug 2012, 17:46

27

13

6,927

by: bumpbot

19 Dec 2022, 06:04

ER

Triangle ABC has vertices A(3,0) , B(6,0) and C(a,b)

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Amankatyal

02 Aug 2018, 02:59

7

4

4,080

by: bumpbot

01 Oct 2023, 13:34

ER

N consecutive integers have a median of 24. What is the largest of the

555-605 (Medium) | Statistics and Sets Problems

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

amanvermagmat

08 May 2018, 23:33

3

1,169

by: bumpbot

16 Apr 2026, 07:19

ER

P, Q, R, S, T are five distinct positive multiples of 10 suc

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

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

amanvermagmat

15 May 2018, 23:06

27

6

4,589

by: KarishmaB

07 Apr 2026, 21:49

Out of 80 people, some drink tea, some drink coffee, while some drink

705-805 (Hard) | Overlapping Sets, Word Problems

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

amanvermagmat

28 Apr 2018, 23:14

23

7

7,164

by: bumpbot

15 Feb 2026, 05:29

ER

A shop sells cigars of brand A as well as brand B. Let X be the event

705-805 (Hard) | Overlapping Sets, Probability

705-805 (Hard) | Overlapping Sets, Probability hide tags

amanvermagmat

08 Jan 2019, 22:40

9

3

2,444

by: egmat

10 Feb 2026, 03:14

ER

Eleven chocolates are distributed among 5 children: A, B, C, D & E

605-655 (Medium) | Min-Max Problems

605-655 (Medium) | Min-Max Problems hide tags

amanvermagmat

24 Nov 2018, 19:19

20

5

7,233

by: bumpbot

09 Feb 2026, 10:42

ER

If x is a non negative number, Is x > 5? (1) |4 - 3x| = 14

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

amanvermagmat

27 Nov 2018, 22:16

2

3

1,511

by: bumpbot

20 Jan 2026, 02:08

Exactly 'N' people are standing in a queue outside a store

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

amanvermagmat

23 Feb 2018, 23:22

6

5

2,798

by: bumpbot

18 Jan 2026, 02:12

ER

Mani, Sani and Karna have x, y and z number of chocolates respectively

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

amanvermagmat

28 Jun 2018, 11:04

8

4

2,626

by: bumpbot

18 Jan 2026, 00:05

ER

A positive integer Y is a six digit number of the form

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

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

amanvermagmat

08 Aug 2018, 23:10

5

3

3,030

by: bumpbot

14 Jan 2026, 23:43