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

176

15

78,643

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,474

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

487,857

by: bb

29 Aug 2025, 13:27

ER

Eight consecutive integers are selected from the integers 1

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

superpus07

06 Nov 2012, 19:05

43

9

9,587

by: anairamitch1804

01 Mar 2017, 22:39

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A number n has the prime factors a, b, and c, and only these

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actleader

06 Nov 2012, 22:59

3

4,343

by: dabral

07 Nov 2012, 14:37

ER

Exactly 6 years ago, James opened 2 salary accounts, with no

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

gmatbull

07 Nov 2012, 05:54

6

4,087

by: bumpbot

01 Oct 2021, 04:45

ER

If line L in the xy-coordinate plane has a positive slope,

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

smartass666

07 Nov 2012, 06:55

188

19

36,138

by: bumpbot

28 Jul 2023, 01:32

ER

If x, y, and z are all positive integers, what is the

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

1, 2

Maxswe

08 Nov 2012, 10:27

26

22

13,322

by: bumpbot

22 Nov 2024, 02:06

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What is the value of x^2 - 4y^2?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

derekgmat

08 Nov 2012, 03:13

5

4

5,056

by: bumpbot

09 Jun 2024, 19:32

ER

The consumer price index in Zeropia in 2009 relative to the

555-605 (Medium) | Percent and Interest Problems, Word Problems

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

Pansi

08 Nov 2012, 16:21

33

6

11,545

by: bumpbot

10 Jun 2025, 15:10

ER

In country C, the percentage of men with phones is between

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

gmatbull

08 Nov 2012, 23:46

12

3

3,966

by: bumpbot

06 Jun 2021, 09:05

ER

Two pieces of fruit are selected out of a group of 8 pieces

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Pansi

09 Nov 2012, 01:34

93

8

13,210

by: bumpbot

03 Sep 2025, 00:57

ER

Is the product of j, k, l and m, or jklm, an odd number?

605-655 (Medium) | Algebra, Number Properties

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

actleader

10 Nov 2012, 04:57

2

3,557

by: bumpbot

29 Mar 2017, 05:50

ER

Given that p and q are positive, prime numbers greater than

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

actleader

10 Nov 2012, 05:17

18

9

5,526

by: bumpbot

04 Jan 2024, 14:13

ER

Is the prime number p equal to 3

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

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

joylive

11 Nov 2012, 08:56

3

4,196

by: bumpbot

28 Sep 2017, 08:05

ER

After winning 30 percent of the first 50 games it played

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Skientist

11 Nov 2012, 13:39

22

6

7,216

by: anirchat

17 Feb 2025, 00:40

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What is the ratio of y to x?

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SirGMAT

02 Dec 2014, 08:21

15

6

7,081

by: Bunuel

02 Dec 2014, 08:21

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Water in a flooded basement is to be pumped into an empty

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

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

gmatbull

13 Nov 2012, 04:15

22

11

7,502

by: bumpbot

14 Dec 2023, 08:18

ER

What is the remainder when is divided by 6 if is a positiv

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

actleader

12 Nov 2012, 23:18

15

8

11,086

by: bumpbot

29 Oct 2025, 09:03

ER

What is the remainder when positive integer t is divided by

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

actleader

13 Nov 2012, 12:48

23

9

6,791

by: bumpbot

09 Sep 2021, 09:50

ER

Is P the youngest of P,Q ,R and S?

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siddharthamaridi

14 Nov 2012, 02:30

4

19,641

by: VeritasPrepRon

21 Mar 2013, 10:51

Find the number of days in the year X

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

siddharthamaridi

20 Mar 2025, 08:32

2

2,996

by: MacFauz

14 Nov 2012, 02:07

ER

Is the integer m an even number?

555-605 (Medium) | Absolute Values, Number Properties

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

actleader

15 Nov 2012, 12:03

32

12

5,982

by: bumpbot

26 Feb 2020, 23:36

ER

How likely is a bird to be classified as positive?

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Anichka

16 Nov 2012, 01:56

12

7,974

by: bumpbot

20 Dec 2024, 00:15

ER

If lines y=mx+b and x=y+bm intersect at a degrees angle

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Marcab

16 Nov 2012, 05:26

45

16

13,676

by: EMPOWERgmatRichC

25 Jun 2018, 20:30

ER

If a, b, and c are positive integers such that 1/a + 1/b = 1

805+ (Hard) | Fractions and Ratios, Inequalities

805+ (Hard) | Fractions and Ratios, Inequalities hide tags

1, 2

monsoon1

19 Nov 2012, 04:01

220

26

69,039

by: bumpbot

20 Aug 2024, 13:31

ER

Four spheres and three cubes are arranged in a line according to incre

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

himanshuhpr

29 Oct 2014, 08:10

81

7

17,886

by: bumpbot

11 Nov 2023, 11:55

ER

If x is an integer, is x even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

valerjo79

20 Nov 2012, 00:15

7

6

7,128

by: bumpbot

08 Jul 2019, 00:46

ER

If x, y and z are distinct prime numbers, how many positive factors do

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

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

vomhorizon

21 Nov 2012, 09:07

20

5

15,553

by: bumpbot

27 Sep 2023, 13:28

ER

Two coins are tossed with probability landing at Head not

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

aeros232

23 Nov 2012, 03:39

6

8

6,981

by: Bunuel

04 Jun 2014, 09:11

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

maxLRok

24 Nov 2014, 01:44

7

6

6,365

by: bumpbot

07 Oct 2022, 08:44

ER

Is xy greater than 1, if x and y are both positive

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

cv3t3l1na

23 Nov 2012, 08:41

4

3

5,080

by: bumpbot

04 Aug 2023, 02:07

ER

a and b are integers such that a*b # 0. Is |a|/|b| = a/b?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

joylive

24 Nov 2012, 08:56

5

3

2,935

by: Bunuel

14 Aug 2017, 01:02

ER

What is the area of quadrilateral ABCD?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

joylive

24 Nov 2012, 09:14

14

6

6,642

by: CEdward

22 Mar 2021, 11:40

ER

If x is a negative integer greater than -10, is z greater than average

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

joylive

24 Nov 2012, 09:36

9

3

3,898

by: SatvikVedala

31 Aug 2024, 20:58

ER

If x and y are positive integers such that the product of x

655-705 (Hard) | Exponents, Number Properties

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

saikiranx

25 Nov 2012, 05:51

33

8

9,097

by: bumpbot

18 Jun 2025, 18:25

ER

Is the sum of 3 positive integers divisible by 6

505-555 (Easy) | Multiples and Factors

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

ritumaheshwari02

26 Nov 2012, 00:21

8

4,652

by: bumpbot

17 Jul 2018, 02:34

ER

Is x + y > 0 ? (1) x/(x + y) > 0 (2) y/(x + y) > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

ritumaheshwari02

22 Jan 2022, 09:12

4

3,851

by: bumpbot

29 Sep 2022, 11:17

ER

Is b/3 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

valerjo79

26 Nov 2012, 03:16

75

21

15,353

by: bumpbot

10 Jul 2023, 09:58

ER

If x is a positive integer, is (x)(x + 2)(x + 4) div by 12?

655-705 (Hard) | Multiples and Factors

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

aeros232

26 Nov 2012, 09:40

39

10

12,486

by: bumpbot

03 Dec 2023, 10:07

ER

Jan and 5 of his friends sold candy bars to raise money for their scho

655-705 (Hard) | Statistics and Sets Problems

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

saxenarahul021

05 Apr 2019, 00:38

254

11

33,495

by: Borrat

13 Mar 2026, 05:50

ER

Is (2/3) x — 3/2 negative?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

saxenarahul021

29 Mar 2017, 05:52

3

2

3,084

by: bumpbot

03 Apr 2023, 19:00

ER

A function f is defined by f(x,y) = x^2 - y. Is the value of

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

darlingriyarai

04 Apr 2019, 23:03

40

6

8,281

by: bumpbot

08 Jun 2024, 12:04

If set B is a subset of Set A, how many elements are in set

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

anon1

28 Nov 2012, 22:15

11

15,581

by: PrashantPonde

26 Jan 2013, 00:41

ER

What is the value of the positive integer m?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

jsphcal

28 Nov 2012, 22:22

11

3

5,577

by: bumpbot

18 Apr 2023, 02:16

ER

If c and d are real numbers, is the value of c less than the

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

ritumaheshwari02

24 Jun 2015, 07:12

8

3

3,042

by: bumpbot

24 Jul 2023, 05:19

ER

If the ratio x: y:z is 3:5:7, what is the value of z

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

ritumaheshwari02

19 Mar 2015, 05:38

6

3

21,092

by: bumpbot

10 Nov 2018, 15:38

ER

What is the product of positive integers r and s ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

ritumaheshwari02

29 Nov 2012, 10:18

2

3,004

by: bumpbot

29 Mar 2017, 05:56

ER

What is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

1, 2

gmatbull

29 Nov 2012, 11:54

4

25

6,682

by: bumpbot

18 Mar 2022, 07:37

ER

What is the value of x? (1) 3x^2 + 8x + 16/3 = 0 (2) 15x^2 + 80/3 = -4

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

gmatbull

29 Nov 2012, 12:02

21

8

6,687

by: bumpbot

17 Jan 2024, 06:36

ER

Is quadrilateral q a rhombus?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

gmatbull

29 Nov 2012, 12:06

44

10

10,057

by: bumpbot

14 Dec 2023, 07:33

ER

What is the value of x?

655-705 (Hard) | Statistics and Sets Problems

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

sje12

15 May 2023, 12:19

13

3

8,089

by: bumpbot

25 Oct 2023, 07:46

ER

Lines k and l intersect in the coordinate plane at point (3,

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

1, 2

supri1234

09 Jul 2013, 15:49

128

20

17,511

by: bumpbot

23 May 2025, 23:03