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

79,577

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

858

24

188,959

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

488,641

by: bb

29 Aug 2025, 13:27

ER

If a and b are integers, and m is an even integer, is ab/4 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

06 Apr 2021, 01:30

9

6

3,454

by: bumpbot

22 Apr 2024, 10:49

ER

GMAT CLUB OLYMPICS: If x is a non-zero integer, what is the value

805+ (Hard) | Absolute Values

805+ (Hard) | Absolute Values hide tags

Bunuel

25 Aug 2021, 08:00

30

5

5,159

by: bumpbot

23 Apr 2024, 02:29

ER

If r is the remainder when 18 is divided by n (2 < n < 18), what is th

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

25 Sep 2018, 05:37

3

2,269

by: bumpbot

23 Apr 2024, 21:00

ER

In the set of data above, is x>10?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

18 May 2017, 00:20

15

10

5,202

by: bumpbot

23 Apr 2024, 23:47

ER

If p and q are both positive integers, then is p divisible by 9?

555-605 (Medium) | Fractions and Ratios, Number Properties

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

KSBGC

05 Mar 2019, 16:02

17

4

3,154

by: bumpbot

24 Apr 2024, 05:29

ER

For integers a and b, is the expression ab – b even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

06 Jun 2017, 11:42

7

4

6,609

by: bumpbot

24 Apr 2024, 22:56

ER

Is x + y odd? (1) 2y + x is even (2) 2x + y is even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

stonecold

21 Nov 2016, 02:22

6

5

4,203

by: bumpbot

24 Apr 2024, 23:12

ER

Are integers a and b consecutive?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

01 Dec 2016, 02:02

8

4

4,753

by: bumpbot

25 Apr 2024, 06:05

ER

What was Joannes average speed during her 4-hour run from Arlington

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

25 Apr 2024, 01:30

4

2

1,011

by: GMATinsight

25 Apr 2024, 06:29

ER

w, x and y are positive integers such that w ≤ x ≤ y. If the average (

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

30 Dec 2020, 00:52

5

4

6,864

by: bumpbot

25 Apr 2024, 13:42

ER

The product of the units, tens, and hundreds digits of the

705-805 (Hard) | Fractions and Ratios

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

accincognito

06 Nov 2013, 11:37

25

3

9,487

by: bumpbot

25 Apr 2024, 14:12

ER

Is |x| > |y| ? (1) x^2 > y^2 (2) x > y

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

xALIx

08 May 2022, 02:27

16

10

8,250

by: bumpbot

25 Apr 2024, 18:11

ER

Starting in 1991, the budget deficit of a certain country was expected

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2024, 01:30

3

1

953

by: GMATinsight

26 Apr 2024, 02:57

ER

For a class of 50 students, the table above reports the number of stud

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

ajgoupil

12 Feb 2020, 10:50

21

5

6,162

by: Bunuel

27 Apr 2024, 02:02

ER

Is a divisible by 3?

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

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

chetan2u

04 Jan 2018, 09:15

25

11

3,460

by: bumpbot

28 Apr 2024, 01:09

ER

If n is a positive integer and is not the square of any integer, is it

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

05 Oct 2017, 05:10

12

3

3,707

by: bumpbot

29 Apr 2024, 02:05

ER

If x is an integer, is x/y an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

DeeptiM

14 Aug 2011, 13:15

41

6

10,277

by: bumpbot

29 Apr 2024, 06:25

ER

50% of the factory workers are not older than 30 years old. What perce

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

14 Jan 2020, 05:15

1

2

4,416

by: bumpbot

30 Apr 2024, 14:59

ER

If a, b, and c are positive integers, what is the remainder

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

thevenus

10 Oct 2012, 14:56

23

4

7,030

by: bumpbot

30 Apr 2024, 18:59

ER

Pat has coins worth either $0.10 or $0.50. If she has more than five

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

04 Apr 2024, 01:30

4

2

2,225

by: Bunuel

04 May 2024, 02:15

ER

If x and y are integers, is x = 0? (1) (-2)^x*y^3 > 0 (2) (-3)^x*y^2

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

20 Jan 2022, 11:54

6

4

2,948

by: bumpbot

05 May 2024, 08:21

ER

If a and b are positive integers, is a b odd? (1) a/b is an odd

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

02 Mar 2023, 02:30

8

3

2,227

by: bumpbot

05 May 2024, 21:46

ER

How many different prime factors does x have?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Harley1980

14 Apr 2015, 05:02

16

6

3,983

by: bumpbot

06 May 2024, 06:14

ER

At a certain pancake festival with 600 attendees in which every attend

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

26 Jul 2016, 09:50

1

6

5,460

by: bumpbot

06 May 2024, 10:10

ER

If p, q, r, and s are non-zero numbers, is pr/qs > r/q?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Aurion

29 Aug 2014, 04:49

16

13

10,474

by: bumpbot

06 May 2024, 12:22

ER

In triangle ABC, side AB is 5 inches and side BC is 7 inches. What is

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Jackal

05 Nov 2014, 07:53

11

4

5,810

by: bumpbot

06 May 2024, 17:59

ER

Is the overall average score of the 3 classes A, B, and C together is

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

25 May 2022, 05:30

7

3

1,608

by: bumpbot

07 May 2024, 00:22

ER

Jumbo Circus charges the same admit fee for each person irrespective

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

GMATBusters

09 May 2020, 18:52

9

10

3,455

by: bumpbot

08 May 2024, 00:18

ER

X and Y are real numbers. Is X*Y negative? (1) (X+Y)^2 > 0 (2) X = Y

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

13 Jan 2019, 22:13

5

7

2,251

by: bumpbot

08 May 2024, 04:32

ER

What is Joe's age (in years)?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

BrentGMATPrepNow

10 Jun 2017, 13:58

12

4

4,944

by: bumpbot

09 May 2024, 04:07

ER

Each candle in a particular box is either round or square and either

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

09 May 2024, 01:30

8

4

1,760

by: Nidzo

09 May 2024, 04:44

ER

If x is a prime number, what is the value of x?

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

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

kashishh

14 Dec 2018, 00:57

34

8

10,228

by: bumpbot

09 May 2024, 09:14

ER

The least common multiple of positive integers p and q is 630. if the

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

28 Sep 2021, 01:30

7

4

3,776

by: Kinshook

09 May 2024, 11:27

ER

Is the average of x consecutive integers divisible by 3? 1) The media

705-805 (Hard) | Number Properties, Statistics and Sets Problems

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

GMATinsight

13 Mar 2021, 02:50

13

2

1,876

by: jager

09 May 2024, 12:14

ER

Is the integer z divisible by 15?

555-605 (Medium) | Multiples and Factors

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

Bunuel

16 Dec 2020, 01:15

14

11

3,333

by: bumpbot

09 May 2024, 17:23

ER

Set A and Set B each contain three whole numbers ranging from 1 to 10.

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

27 Nov 2014, 07:51

16

7

4,870

by: bumpbot

10 May 2024, 03:39

ER

What is the value of positive integer x?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

19 Jan 2015, 06:09

25

8

7,427

by: bumpbot

10 May 2024, 08:59

ER

At least one pencil is distributed to each of the 19 students. Did at

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

BillyZ

23 Mar 2017, 00:20

10

5

3,317

by: bumpbot

11 May 2024, 04:45

ER

If c and d are positive, is d an integer ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

pathakshashi

23 Jul 2012, 01:40

10

3

5,931

by: bumpbot

11 May 2024, 10:11

ER

If a*b 0, is |a|/|b| = a/b? (1) |a*b| = a*b (2) |a|/|b| = |a/b|

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

devinawilliam83

11 May 2024, 13:34

12

3

7,122

by: bumpbot

11 May 2024, 13:30

ER

If x and y are integer, is y < 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Supermaverick

06 Jul 2017, 11:30

1

2

1,956

by: bumpbot

11 May 2024, 14:37

ER

Carlotta can drive from her home to her office by one of two

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

seabhi

24 Feb 2014, 06:56

23

4

18,898

by: bumpbot

12 May 2024, 23:21

ER

An urn contains only two kinds of marbles: red and blue. If a marble

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

14 May 2024, 01:30

4

3

1,405

by: Bunuel

14 May 2024, 23:54

ER

If x, y and z are positive, is x = y/z^2 ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Feb 2014, 07:50

7

4

15,002

by: bumpbot

15 May 2024, 19:14

ER

What is the value of x? (1) x^2 – 5 x + 6 = 0 (2) x > 0

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

ajgoupil

06 Feb 2020, 11:29

6

8,206

by: bumpbot

16 May 2024, 00:57

ER

If xy 0, is |x| > |y| (1) x = -2y (2) x = y^4

605-655 (Medium) | Absolute Values, Algebra

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

Bunuel

03 Apr 2023, 06:15

2

1,809

by: bumpbot

16 May 2024, 03:01

ER

If k is a positive integer, what is the remainder when 62^k^3 is

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

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

Bunuel

25 Jan 2022, 02:30

12

3

2,916

by: bumpbot

16 May 2024, 07:29

ER

Three brothers shared all the proceeds from the sale of their inherite

555-605 (Medium) | Fractions and Ratios, Word Problems

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

Bunuel

24 Feb 2016, 04:26

11

7

7,108

by: ADisHere

16 May 2024, 09:43

ER

How many of the 90 laptop computers sold in January by online retailer

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

23 Feb 2022, 04:00

4

2

2,083

by: bumpbot

16 May 2024, 23:48

ER

Alex, Barbara and Cynthia shared the driving on a 500 mile trip. Which

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

Bunuel

17 May 2024, 01:30

2

1

1,309

by: GMATinsight

17 May 2024, 01:43