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

178

15

79,018

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

188,698

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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

488,224

by: bb

29 Aug 2025, 13:27

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If x and y are integers, is xy greater than 0? 1) x2 is greater than

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Apr 2016, 05:29

1

5

3,212

by: sameerspice

14 Apr 2016, 19:00

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If x is a nonzero integer less than 36, is 36/x even?

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

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

Bunuel

11 Apr 2016, 04:10

1

3

2,803

by: CV7585

13 Apr 2016, 23:50

ER

What is the value of prime number z?

505-555 (Easy) | Inequalities, Number Properties

505-555 (Easy) | Inequalities, Number Properties hide tags

Bunuel

28 Feb 2016, 09:46

1

4

2,353

by: chetan2u

28 Mar 2016, 07:34

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If p≠0, is r less than zero?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

07 Mar 2016, 03:30

1

3

4,763

by: chetan2u

07 Mar 2016, 19:55

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In a certain marching band formation

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Vineetk

29 Jun 2013, 03:35

1

6

5,250

by: Bunuel

07 Mar 2016, 10:00

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Two persons A and B run at constant speeds of a miles per hour and b

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

chetan2u

19 Feb 2016, 21:47

24

3

5,649

by: chetan2u

23 Feb 2016, 23:44

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What is the area of the circle?

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Mesto

23 Feb 2016, 00:08

2

2,010

by: MathRevolution

21 Feb 2016, 23:02

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Assuming that neither m nor n is zero, is the product m 2 n positive?

505-555 (Easy) | Inequalities, Number Properties

505-555 (Easy) | Inequalities, Number Properties hide tags

Bunuel

31 Jan 2016, 07:14

1

2

1,802

by: GMATinsight

01 Feb 2016, 05:38

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In the figure above, if lines l and m are parallel, what is the value

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

27 Dec 2015, 10:32

2

10,294

by: TeamGMATIFY

29 Dec 2015, 04:06

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If a and b are positive integers, a is what percent of b ?

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

06 Dec 2015, 12:03

1

5

3,939

by: MathRevolution

09 Dec 2015, 07:06

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If n is an integer, is n + 4 a prime number?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

metallicafan

05 Sep 2013, 08:19

8

7

4,418

by: MathRevolution

06 Dec 2015, 11:33

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Alison, the company CEO, wants to schedule a one-hour meeting on Monda

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Jan 2015, 11:01

2

5

2,348

by: rakshithbabu

23 Oct 2015, 06:28

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If a and b are integers, is a + 8b even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

12 Oct 2015, 22:31

8

3,285

by: IcyTropic

14 Oct 2015, 15:43

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Is x a positive number?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

01 Oct 2015, 01:40

3

5

7,620

by: Bunuel

06 Oct 2015, 08:19

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The perimeter of square ABCD is half of the perimeter of parallelogram

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

07 Sep 2015, 23:00

1

5

3,721

by: MathRevolution

15 Sep 2015, 09:29

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What is the value of x? (1) 3x + 15y = 35 (2) 70 − 6x = 30y

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

09 Sep 2015, 00:48

5

7

3,679

by: Bunuel

14 Sep 2015, 06:55

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If n is a positive integer, and sqrt[(45)(14)(7^n)-(15)(7^(n-1))(54)]

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wimpytots

02 Sep 2015, 19:30

17

10

4,857

by: ENGRTOMBA2018

04 Sep 2015, 04:55

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How many prime numbers are less than integer k ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

AbdurRakib

28 Aug 2015, 12:43

3

4

3,099

by: Bunuel

30 Aug 2015, 00:49

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If r + s = 4, is s < 0? (1) -4 > -r (2) r > 2s + 2

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Jul 2015, 01:43

6

4,922

by: Bunuel

17 Aug 2015, 09:33

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A college surveyed 50 students to determine the average

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shobhitb

18 Jun 2006, 06:33

2

12

4,392

by: ENGRTOMBA2018

19 Jul 2015, 07:52

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Is x = 1?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

19 Jun 2015, 01:55

6

5

4,700

by: Bunuel

22 Jun 2015, 06:22

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What is the units digit of integer s? (1) The units digit of

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dreambeliever

07 Jun 2011, 08:05

4

18

3,948

by: Harley1980

19 Jun 2015, 12:33

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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

12,946

by: ash99

22 Apr 2015, 11:32

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A ladder of fixed length is stacked against a wall. The wall is perpen

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mahiGMAT

25 Mar 2015, 03:08

3

7

3,228

by: SherLocked2018

30 Mar 2015, 02:33

ER

When 200 laboratory rats were given an experimental medicine

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

rxs0005

12 Feb 2012, 10:33

2

10

3,522

by: shriramvelamuri

29 Jan 2015, 13:19

ER

What is the number of 360-degree rotations that Tashi’s unicycle wheel

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

12 Jan 2015, 11:15

1

3

2,515

by: Bunuel

19 Jan 2015, 03:43

ER

José deposited a total of $ 10,000 into two interest-bearing accounts

555-605 (Medium) | Percent and Interest Problems

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

gmatmania17

29 Dec 2014, 05:28

7

3,851

by: EMPOWERgmatRichC

30 Dec 2014, 21:01

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What is the ratio of y to x?

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SirGMAT

02 Dec 2014, 08:21

15

6

7,088

by: Bunuel

02 Dec 2014, 08:21

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What is the increasing percent of the price of the company's stocks

555-605 (Medium) | Fractions and Ratios

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

h31337u

09 Nov 2014, 07:52

2

3

3,147

by: Bunuel

10 Nov 2014, 02:29

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S is an infinite sequence, in which the value of a

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gmatprep2011

23 Sep 2011, 23:23

18

9

5,831

by: Bunuel

21 Sep 2014, 11:41

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

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alphonsa

18 Aug 2014, 09:21

3

2

2,581

by: Bunuel

18 Aug 2014, 09:31

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If f and g are both positive integers greater than 1

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Gnpth

25 Jul 2014, 11:07

1

3

7,496

by: Bunuel

26 Jul 2014, 02:05

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If x and y are non-zero integers, is x = y ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

iaratul

01 Jul 2014, 04:06

9

4

3,079

by: iaratul

01 Jul 2014, 06:43

ER

The net value of a certain stock increased at a constant

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

AtifS

05 Mar 2010, 23:58

4

3,854

by: KarishmaB

11 Jun 2014, 01:42

ER

If the point (4,6) lies on line l, and the point (x,3)

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

gauravsoni

08 Dec 2015, 03:34

2

5

5,769

by: Bunuel

21 May 2014, 02:19

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A certain 13m ladder is resting against a wall of height X

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rathoreaditya81

05 Dec 2009, 11:51

4

16

4,829

by: kundankshrivastava

19 May 2014, 23:42

ER

Is the positive integer p the sum of the positive prime

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

wininblue

21 Aug 2010, 04:24

2

6

4,882

by: Bunuel

16 Apr 2014, 07:32

ER

In a group of 80 college students, how many own a car?

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

gmatprep2011

29 Mar 2014, 11:48

21

9

13,349

by: Bunuel

29 Mar 2014, 11:48

ER

At a certain restaurant, burgers, fries, and soft drinks are

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

gmatpapa

28 May 2013, 05:45

4

6

4,109

by: jlgdr

27 Feb 2014, 09:29

ER

Is x divisible by 30?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

terp26

13 Mar 2008, 08:57

26

3

4,989

by: Bunuel

07 Feb 2014, 05:09

ER

Is the number of seconds required to travel d1 feet at r1

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

gluon

23 Dec 2013, 00:08

16

7

8,786

by: Bunuel

23 Dec 2013, 00:09

ER

What is the value of b ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

avohden

22 Oct 2013, 22:00

5

3,070

by: Bunuel

01 Dec 2013, 07:21

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Let denote a mathematical operation. Is it true that x y

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conty911

25 Apr 2012, 22:35

4

3

6,558

by: Bunuel

30 Oct 2013, 07:59

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By what percent is the time taken by 12 men to complete a pa

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tabsang

28 Dec 2012, 05:49

10

6

4,906

by: fmomen01

22 Oct 2013, 07:14

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p and q are different two-digit prime numbers with the same

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

cvsmech

28 Sep 2011, 14:06

41

9

33,892

by: Bunuel

08 Sep 2013, 07:00

ER

If x and y are both integers, which is larger, x^x or y^y?

655-705 (Hard) | Exponents, Inequalities

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

AnkitK

23 Jul 2011, 02:25

4

7

4,990

by: Bunuel

08 Sep 2013, 06:04

ER

Three machines, K, M, and P, working simultaneously and

Sub 505 (Easy) | Work and Rate Problems

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

rajman41

01 Jun 2012, 21:01

10

3

6,150

by: Bunuel

01 Jul 2013, 00:03

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Is square root of a positive integer x an integer?

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

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

summer101

03 Jun 2013, 07:14

37

2

9,776

by: Bunuel

05 Jun 2013, 03:07

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If f(x) = 2^x + 2^-2, and x is an integer

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gmatbull

06 Dec 2012, 05:07

3

2,496

by: mikemcgarry

07 Dec 2012, 12:05

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What is the slope of the line L ?

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shivanigs

11 Sep 2012, 22:30

8

4

11,383

by: Bunuel

12 Sep 2012, 02:13