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

79,196

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

188,806

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

488,421

by: bb

29 Aug 2025, 13:27

ER

If sqrt(x) is an integer, what is the value of sqrt(x)?

555-605 (Medium) | Inequalities, Number Properties

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

Bunuel

29 Sep 2021, 01:00

6

3

5,237

by: Bunuel

04 Dec 2022, 07:27

ER

x = 2y + z, where z < y. Find x.

805+ (Hard) | Multiples and Factors +2 tags

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

PrepTap

18 May 2015, 22:40

18

9

4,346

by: bumpbot

04 Dec 2022, 05:07

ER

If a and b are integers then what is the remainder when a^2 + b^2 is

705-805 (Hard) | Multiples and Factors, Remainders

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

Kritisood

16 Apr 2020, 01:18

20

5

5,242

by: bumpbot

04 Dec 2022, 04:48

ER

If x and y are integers, is 5x + y divisible by 5?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

30 Mar 2016, 03:54

5

3

5,456

by: bumpbot

04 Dec 2022, 04:31

ER

A, B, P, and Q are four positive numbers. Does AQ = BP?

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Bunuel

26 Feb 2015, 06:55

40

6

4,709

by: bumpbot

04 Dec 2022, 00:59

ER

Is (9^x)^(3 – 2x) = 1? (1) The product of x and positive integer y is

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

Bunuel

29 Apr 2019, 06:05

15

12

8,238

by: bumpbot

03 Dec 2022, 23:42

ER

Is ac + bd + bc + ad > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

27 Nov 2019, 02:03

3

2,456

by: bumpbot

03 Dec 2022, 05:00

ER

If r, s and t are not zero, is r > s > t ? (1) rs/s > rs/r (2) st/s >

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

19 Jul 2019, 01:37

10

5

3,005

by: bumpbot

03 Dec 2022, 03:17

ER

If r > s + t , is r positive? (1) s > t (2) r/(s+t) > 1

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

kuttingchai

23 May 2012, 20:59

13

9

5,431

by: bumpbot

03 Dec 2022, 03:10

ER

What is the volume of a certain cube?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

joaomario

12 Aug 2014, 02:23

35

5

20,223

by: bumpbot

03 Dec 2022, 00:14

ER

If all variables are positive, is (w/x) > (y/z)?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

27 May 2018, 10:23

4

5

2,167

by: bumpbot

02 Dec 2022, 09:09

ER

Cyclist A leaves point X at 12 noon and travels at constant velocity

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

11 Apr 2017, 01:08

4

10

3,491

by: bumpbot

02 Dec 2022, 08:57

ER

What is the value of 5a + 10b, if a and b are positive integers such

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

30 Nov 2022, 10:15

3

1,467

by: chetan2u

02 Dec 2022, 03:03

ER

If x is a positive integer, is the remainder 0 when (3^x + 1)/10?

605-655 (Medium) | Number Properties, Remainders

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

curtis0063

02 Jan 2013, 09:00

16

17

7,828

by: bumpbot

02 Dec 2022, 03:00

ER

If both a and b have odd number of factors, what is the value of a/b ?

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

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

Bunuel

01 Dec 2022, 09:00

2

3

1,025

by: SaquibHGMATWhiz

01 Dec 2022, 23:15

ER

If the x-intercept of a line l is a and y intercept is b. Is the slope

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

rheam25

01 Jun 2020, 05:42

20

7

6,232

by: bumpbot

01 Dec 2022, 18:58

ER

A right circular cylinder has a radius r and a height h.

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

enigma123

12 Feb 2012, 22:04

39

10

31,342

by: va95

01 Dec 2022, 13:01

ER

If line k is in the xy–coordinate plane, what is the slope of k?

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Bunuel

27 Jul 2018, 03:10

6

5

4,127

by: bumpbot

01 Dec 2022, 09:47

ER

If x and y are positive integers and y>x , what is the

655-705 (Hard) | Statistics and Sets Problems

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

pranit

28 Aug 2011, 00:45

11

10

11,465

by: bumpbot

01 Dec 2022, 09:08

ER

What is the tens digit of N, where N = (177)^322+k ? (k is a positive

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

manavsaraf001

30 Nov 2022, 12:04

2

1

776

by: chetan2u

01 Dec 2022, 05:28

ER

GMAT CLUB OLYMPICS: The sequence of n integers is such that

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

18 Aug 2021, 08:00

17

5

5,990

by: bumpbot

01 Dec 2022, 03:27

ER

If P and Q are positive integers, is P = Q ?

605-655 (Medium) | Multiples and Factors

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

Bunuel

30 Nov 2022, 11:15

1

812

by: gmatophobia

30 Nov 2022, 13:54

ER

From 1985 to 1994, what was the percent increase in total Un

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Phoenix72

13 Sep 2013, 04:39

18

6

14,554

by: Krishraj

30 Nov 2022, 11:46

ER

GMAT CLUB OLYMPICS: If x 0, is x < 1 ?

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

24 Aug 2021, 08:00

16

5

4,230

by: chetan2u

30 Nov 2022, 04:43

ER

In the figure, the area of the first rectangle is 100. What is the are

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

21 Oct 2021, 01:30

4

6

2,389

by: bumpbot

29 Nov 2022, 12:32

ER

If xy ≠ 0, is xy = 70? (1) x > y (2) x^2 = y^2

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

16 Dec 2019, 01:41

27

7

7,411

by: bumpbot

29 Nov 2022, 12:06

ER

Is xy+zt+yz+tx > 0?

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Algebra, Inequalities hide tags

fskilnik

25 Feb 2019, 15:28

9

4

2,236

by: bumpbot

29 Nov 2022, 11:07

ER

What is the value of a^4 – b^4 ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Sep 2017, 00:03

2

3

2,095

by: bumpbot

29 Nov 2022, 11:07

ER

When assigning a score for the term, a professor takes the mean of all

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

31 Jan 2019, 01:12

2

1,677

by: cat2010

29 Nov 2022, 10:59

ER

If a, b, x, y are positive integers and a^xb^y= 144, then a + b = ?

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

idontknowwhy94

05 Oct 2016, 05:34

42

5

6,775

by: bumpbot

29 Nov 2022, 10:57

ER

If a and x are integers and a > x what is the value of x ?

605-655 (Medium) | Exponents, Inequalities

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

Bunuel

29 Nov 2022, 02:30

6

3

1,191

by: cat2010

29 Nov 2022, 10:39

ER

If n is an integer, is n even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

25 Jun 2017, 03:03

4

7

7,012

by: bumpbot

29 Nov 2022, 05:12

ER

Roger can chop down 4 trees in an hour. How long does it take Vincent

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

22 Sep 2021, 01:30

1

2

3,732

by: bumpbot

29 Nov 2022, 05:03

ER

Is x > 0? (1) |2x - 12| < 10 (2) x^2 - 10x >= -21

655-705 (Hard) | Absolute Values, Inequalities

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

1, 2

WholeLottaLove

16 May 2013, 14:00

27

20

9,980

by: bumpbot

29 Nov 2022, 04:21

ER

Is the perimeter of a triangle greater than 30?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

08 Jan 2020, 02:15

22

12

6,927

by: bumpbot

29 Nov 2022, 04:15

ER

If x–1 is a positive integer, is x–1 divisible by 3?

655-705 (Hard) | Multiples and Factors

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

Ljchen121

15 May 2012, 20:06

28

6

11,461

by: bumpbot

29 Nov 2022, 03:50

ER

The four integers a, b, c, and d are such that a < b < c < d, d = 7a

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

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

Bunuel

23 Nov 2017, 06:57

36

7

7,218

by: bumpbot

29 Nov 2022, 03:38

ER

In the figure above, if PQ = x, is the area of triangle PQR equal to

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

29 Aug 2019, 06:40

5

3

2,608

by: bumpbot

29 Nov 2022, 03:10

ER

What is the value of x^2 + y^2 + xy ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

29 Nov 2022, 02:30

3

2

1,216

by: gmatophobia

29 Nov 2022, 03:03

ER

If a and b are integers, then what is the value of ab ?

505-555 (Easy) | Exponents

505-555 (Easy) | Exponents hide tags

Bunuel

03 Feb 2021, 10:41

1

2

1,823

by: bumpbot

29 Nov 2022, 01:24

ER

If a and b are positive integers, then what is the value of a^b ?

705-805 (Hard) | Exponents, Number Properties

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

Bunuel

15 Nov 2019, 02:05

11

7

5,775

by: bumpbot

29 Nov 2022, 00:56

ER

What is the value of positive integer b?

705-805 (Hard) | Multiples and Factors

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

Bunuel

20 Jan 2017, 07:42

15

6

2,573

by: bumpbot

29 Nov 2022, 00:47

ER

If a and b are positive integers, what is the value of a - b?

555-605 (Medium) | Algebra, Exponents

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

FN

01 Jan 2019, 00:16

42

13

10,761

by: bumpbot

29 Nov 2022, 00:44

ER

If a and b are integers, what is the value of b?

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

05 May 2021, 06:30

7

3

2,279

by: bumpbot

29 Nov 2022, 00:38

ER

X = 2*(P/ Q)^(n+1). Find X if P, Q and n are positive integers.

705-805 (Hard) | Exponents, Multiples and Factors

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

Bunuel

28 Nov 2022, 11:15

3

1

909

by: gmatophobia

28 Nov 2022, 22:39

ER

Is x<5? 1) 7,9 and x form sides of an obtuse angled triangle 2) 4,5 an

605-655 (Medium) | Geometry, Inequalities

605-655 (Medium) | Geometry, Inequalities hide tags

TheUltimateWinner

16 Apr 2019, 09:25

8

2

1,258

by: bumpbot

28 Nov 2022, 20:08

ER

Is x^3 + y^3 > x^2 + y^2? (1) x + y >x^2+y^2 (2) x^4 + y^4 > x^2 + y^2

805+ (Hard) | Exponents, Inequalities

805+ (Hard) | Exponents, Inequalities hide tags

Bunuel

29 Sep 2021, 01:00

14

7

4,819

by: StacyArko

28 Nov 2022, 11:53

ER

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

605-655 (Medium) | Multiples and Factors

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

Bunuel

28 Nov 2022, 02:30

4

3

998

by: gmatophobia

28 Nov 2022, 09:37

ER

If a, b are the integers, is b divisible by 7 ?

555-605 (Medium) | Multiples and Factors

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

Bunuel

28 Nov 2022, 02:30

4

3

1,131

by: gmatophobia

28 Nov 2022, 09:25

ER

The figure above represents a rectangular tile. The eight hexagons in

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

18 Nov 2022, 08:57

2

1

917

by: stne

28 Nov 2022, 09:23