GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

176

15

78,869

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,614

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

488,058

by: bb

29 Aug 2025, 13:27

ER

If k is a positive integer, is k a prime number?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

04 Nov 2020, 05:45

2

1,340

by: TestPrepUnlimited

05 Nov 2020, 15:46

ER

For non-negative integers x, y, and z, is x^z odd?

605-655 (Medium) | Exponents, Number Properties

605-655 (Medium) | Exponents, Number Properties hide tags

Bunuel

29 Sep 2015, 05:32

24

10

7,167

by: Basshead

05 Nov 2020, 12:45

ER

Is the integer x a prime number? (1) x + 1 is prime (2) x + 2 is not

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

04 Nov 2020, 06:15

2

3

1,180

by: chetan2u

04 Nov 2020, 20:53

ER

A man shared his lottery winnings of $15,000 with his wife and two

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 May 2016, 00:15

5

4

6,877

by: bumpbot

04 Nov 2020, 07:23

ER

Is xy < 1 ? (1) xy < 2/3 (2) x > 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Sajjad1994

02 Nov 2020, 11:06

2

2,032

by: TestPrepUnlimited

03 Nov 2020, 17:37

ER

Is z > x, if y > x and x is a negative integer?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

chetan2u

19 Oct 2020, 22:20

3

6

1,805

by: Basshead

03 Nov 2020, 12:54

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

9,787

by: Bunuel

03 Nov 2020, 12:01

ER

Is integer z divisible by 12? (1) z is divisible by 8. (2) z is divis

555-605 (Medium) | Multiples and Factors

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

Bunuel

01 Nov 2020, 00:15

1

1,047

by: chetan2u

01 Nov 2020, 20:17

ER

What is the value of positive integer K? (1) 2, 5, and 7 are the only

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

01 Nov 2020, 00:15

1

921

by: TestPrepUnlimited

01 Nov 2020, 14:09

ER

A certain list consists of several consecutive integers. Are there an

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Russ19

29 Oct 2020, 03:42

2

4

2,020

by: QuantMadeEasy

01 Nov 2020, 09:42

Is 3n^2 + 4n + 7 even? (1)n is a factor of 165 (2)n is a prime number

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Russ19

01 Nov 2020, 07:24

2

1,154

by: VoltAmpere

01 Nov 2020, 08:24

ER

Is integer z divisible by 21? (1) z is divisible by 7. (2) z is divis

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

01 Nov 2020, 00:15

1

1,135

by: yashikaaggarwal

01 Nov 2020, 04:18

ER

If x, y, and z are integers and p = x*y*z, is p odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

01 Nov 2020, 00:16

1

1,516

by: yashikaaggarwal

01 Nov 2020, 03:15

ER

If P, Q, R, and S are all integers, is product PQRS even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

17 Feb 2016, 03:13

8

15

9,174

by: Bunuel

01 Nov 2020, 01:46

ER

Is the triangle equilateral ?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

ShankSouljaBoi

31 Oct 2020, 09:30

3

7

1,894

by: jhavyom

31 Oct 2020, 23:17

ER

Each boy does exactly 2 units of work per day and each girl does

555-605 (Medium) | Arithmetic, Work and Rate Problems

555-605 (Medium) | Arithmetic, Work and Rate Problems hide tags

amanvermagmat

09 Jun 2018, 11:22

8

3

3,002

by: bumpbot

31 Oct 2020, 20:08

ER

If a certain animated cartoon consists of a total of 24,892 frames on

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

14 Oct 2019, 02:57

3

2,220

by: bumpbot

31 Oct 2020, 18:21

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

5,825

by: Basshead

31 Oct 2020, 12:43

ER

A certain jar contained only pennies and nickels. After 3 pennies were

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

05 May 2019, 23:54

3

4

3,873

by: bumpbot

31 Oct 2020, 08:33

ER

If k is a positive integer, is square root of k an integer?

655-705 (Hard) | Inequalities, Number Properties

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

enigma123

07 Mar 2012, 15:55

13

4

9,229

by: Basshead

31 Oct 2020, 08:12

ER

Is a/b > 0 ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Carcass

27 Feb 2012, 07:19

3

7

3,584

by: Basshead

31 Oct 2020, 07:39

ER

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

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

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

TheUltimateWinner

28 Oct 2020, 10:12

3

3,066

by: nikitarana

31 Oct 2020, 06:38

ER

A jogger runs along the track PABCQRCDASP. How many times will he nee

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

30 Oct 2020, 00:15

7

2,174

by: yashikaaggarwal

31 Oct 2020, 06:23

ER

What is the volume of rectangular box S? (1) The total surface area

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

11 Aug 2019, 05:32

1

2

3,218

by: bumpbot

31 Oct 2020, 05:40

ER

Is x > 4?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

rxs0005

26 Jan 2011, 05:59

3

11

6,512

by: Basshead

31 Oct 2020, 04:58

ER

Is 5 > x > 0 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

GMATD11

23 Feb 2014, 05:17

4

10

5,223

by: Basshead

31 Oct 2020, 02:59

ER

What is the value of b?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

marcovg4

31 May 2013, 11:33

6

7

3,868

by: bumpbot

31 Oct 2020, 01:18

ER

Is x positive? (1) 1/(x+1) < 1/(x-1) where x ≠ 1; x ≠ -1 (2) x is eve

655-705 (Hard) | Algebra, Inequalities

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

siddharthkapoor

19 Oct 2020, 03:22

5

6

1,789

by: Pankaj0901

29 Oct 2020, 11:25

ER

A room is 480 centimeters wide and 520 centimeters long. If n identica

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

10 Jun 2015, 04:00

15

9

9,038

by: bumpbot

29 Oct 2020, 03:36

ER

Is x = y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

peacewarriors

08 Jul 2014, 02:03

8

7

2,952

by: bumpbot

29 Oct 2020, 02:43

ER

If a and b are distinct non zero numbers, is x+y an even

705-805 (Hard) | Exponents, Number Properties

705-805 (Hard) | Exponents, Number Properties hide tags

surendar26

27 Nov 2017, 18:30

33

9

7,739

by: Basshead

29 Oct 2020, 02:39

ER

If p, s, and t are positive prime numbers, what is the value

555-605 (Medium) | Algebra +2 tags

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

vaivish1723

23 Jan 2010, 00:18

14

9

11,204

by: Basshead

28 Oct 2020, 12:21

ER

What is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

audiogal101

29 Nov 2013, 04:06

3

5

2,922

by: bumpbot

28 Oct 2020, 09:07

ER

If x and y are positive integers, what is the remainder when

555-605 (Medium) | Exponents, Remainders

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

MathRevolution

25 May 2018, 02:38

10

8

3,419

by: Basshead

27 Oct 2020, 10:05

ER

Is m > 0 ? (1) m^2/(-3) < 0 (2) (-m)(-5) > 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Rs1991

08 Jun 2013, 16:49

2

3

3,209

by: bumpbot

27 Oct 2020, 08:17

ER

If n is an integer, what is the remainder when 3+8n is divided by 6?

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

TheUltimateWinner

25 Oct 2020, 09:04

4

6

1,658

by: PRAJESH0133

26 Oct 2020, 10:44

ER

What is the value of x?

705-805 (Hard) | Algebra, Exponents

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

Bunuel

16 Jul 2017, 23:10

9

2

2,261

by: bumpbot

25 Oct 2020, 22:12

ER

What is the value of xyz? (1) y! = 6 and x! > 720 (2) z is the least

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

01 May 2019, 00:39

4

7

2,434

by: bumpbot

25 Oct 2020, 03:04

ER

In April, how much did Kolshtov spend on gasoline per mile to drive hi

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

17 Jun 2018, 06:26

2

3

2,228

by: bumpbot

25 Oct 2020, 02:03

ER

What is the value of x? (1) 310x + 562y = 909 (2) 951x – 626y = 323

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Oct 2020, 00:15

6

2,412

by: Nipungupta9081

24 Oct 2020, 04:23

ER

If the length of arc ACB in the circle above is 5p, is the length of A

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Oct 2020, 12:26

7

8

2,195

by: Bunuel

23 Oct 2020, 08:54

ER

Is xy + xy < xy ? (1) x^2/y < 0 (2) x^9*(y^3)^3 < (x^2)^4*y^8

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

nitin1negi

07 Feb 2021, 04:29

16

5

5,577

by: bumpbot

23 Oct 2020, 02:00

ER

What is the value of C + B? (1) A + B = C + D = E + F (2) (E + F) =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

22 Oct 2020, 00:15

6

2,428

by: akadiyan

22 Oct 2020, 20:53

ER

Is x/y = 1 ? (1) x^3/y^3 = 1 (2) x^2/y^2 = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Niveditha28

19 Oct 2020, 05:47

3

4

1,519

by: MathRevolution

20 Oct 2020, 11:01

ER

What is the remainder when positive integer n, where n≥5, is divided b

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

TheUltimateWinner

19 Oct 2020, 08:07

3

4

1,635

by: IanStewart

19 Oct 2020, 22:28

ER

How many boxes, each of which contains 64 cubic inches, will fit into

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

17 Oct 2020, 13:26

3

1,944

by: gmatcafe

19 Oct 2020, 19:49

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

9,289

by: Tonkotsu

19 Oct 2020, 19:40

ER

If x is a non-zero integer, what is the value of x ? (1) -4x - 7 > -1

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

17 Oct 2020, 13:25

2

3

1,689

by: gmatcafe

19 Oct 2020, 19:39

ER

What is the total profit on sales of seven dozen washers? (1) Washers

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

17 Oct 2020, 13:33

1

3

1,607

by: RuchirB

19 Oct 2020, 10:10

ER

Mona has $2.05 in quarters and dimes. How many quarters does she have?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

17 Oct 2020, 11:59

1

3

3,217

by: MathRevolution

19 Oct 2020, 02:33