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

78,660

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,480

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

487,876

by: bb

29 Aug 2025, 13:27

ER

Is n an integer greater than 4?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

30 Sep 2022, 14:12

20

6

16,087

by: bumpbot

02 Sep 2025, 10:03

ER

For isosceles triangle LMN, what is the measure of angle N?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

10 May 2016, 01:20

10

17

16,084

by: Basshead

22 Nov 2020, 12:29

ER

If h and k are both positive integers, are both roots of the equation

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

1, 2

hubahuba

25 Jul 2014, 16:53

92

24

16,074

by: bumpbot

10 Mar 2025, 03:18

ER

In the decimal 3.1de, d and e each represent a digit. If x

555-605 (Medium) | Fractions and Ratios

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

raviram80

31 May 2013, 00:53

61

15

16,067

by: bumpbot

23 Jul 2025, 01:00

ER

The figure above represents the floor of a square foyer with a circula

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

09 Dec 2014, 07:33

39

4

16,065

by: bumpbot

13 Oct 2025, 11:39

ER

A nut is to be selected at random from a certain bowl that contains

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

houston1980

01 Jul 2023, 09:20

58

3

16,053

by: bumpbot

02 Aug 2025, 03:41

ER

If vertices of a triangle are A (5, 0), B (x, y) and C (25, 0), what

555-605 (Medium) | Coordinate Plane, Geometry

555-605 (Medium) | Coordinate Plane, Geometry hide tags

bb

11 Oct 2021, 03:50

45

7

16,052

by: bumpbot

26 Aug 2025, 23:56

ER

What is the hundredths digit of the decimal m ?

555-605 (Medium) | Fractions and Ratios

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

tatane90

21 Sep 2010, 13:49

82

13

16,046

by: GMATinsight

13 Feb 2025, 08:53

ER

A jar contains only black marbles and white marbles. If two thirds of

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

21 Apr 2015, 05:59

70

13

16,037

by: bumpbot

12 Feb 2026, 06:00

ER

If Q is an integer between 10 and 100, what is the value of

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

17 Jan 2014, 02:33

26

6

16,036

by: totaltestprepNick

23 Feb 2026, 13:49

ER

If n is a nonzero integer, is xn < 1?

505-555 (Easy) | Inequalities, Number Properties

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

lastshot

20 Aug 2014, 20:56

24

8

16,028

by: bumpbot

29 Apr 2024, 10:24

ER

What is the value of x?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

01 Apr 2026, 11:28

56

8

16,012

by: bumpbot

03 Sep 2024, 20:19

ER

If the vertices of a triangle have coordinates (x,1), (5,1)

705-805 (Hard) | Coordinate Plane, Geometry

705-805 (Hard) | Coordinate Plane, Geometry hide tags

slingfox

22 Apr 2012, 02:22

55

5

16,012

by: bumpbot

09 May 2023, 12:59

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n = 2^4*3^2*5^2 and positive integer d is a divisor of n. Is d > n^?

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

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

gmatt1476

21 Sep 2019, 19:31

76

8

16,008

by: bumpbot

05 Jan 2026, 07:43

ER

From a group of J employees, K will be selected, at random, to sit in

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

18 Feb 2015, 04:55

58

10

16,002

by: sanjitscorps18

26 Apr 2025, 09:04

ER

During week W, how much did it cost, per mile, for the gasoline used

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

15 Dec 2014, 09:40

26

4

16,000

by: agrasan

16 Jul 2025, 22:23

ER

A sporting goods store received a shipment of baseball glove

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

thelosthippie

03 May 2013, 03:08

164

19

15,992

by: bumpbot

17 Jun 2025, 09:05

ER

If the prices of four of the five books that Ann bought are $4, $6, $1

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

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

Bhide

26 Dec 2023, 23:55

152

10

15,990

by: NEYR0N

05 Apr 2025, 04:54

ER

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

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

06 Dec 2019, 05:50

19

10

15,982

by: bumpbot

01 Nov 2024, 02:40

ER

How many student s are enrolled in the Groveville Public Schools?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

GMATBusters

05 Dec 2018, 06:53

2

3

15,969

by: bumpbot

08 Mar 2025, 05:38

ER

When David drove from his home to his parents' home, was his average

655-705 (Hard) | Arithmetic, Distance and Speed Problems

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

Laracbo

27 Feb 2024, 16:52

134

12

15,963

by: Bunuel

14 Apr 2026, 21:55

ER

Is it true that a > b? (1) 2a > 2b (2) a + c > b + c

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

briozeal

29 Mar 2012, 06:17

11

6

15,960

by: bumpbot

13 Dec 2023, 10:42

ER

There were initially no black marbles in a jar. Subsequently

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

marcodonzelli

29 Nov 2012, 04:11

37

12

15,958

by: bumpbot

07 Nov 2024, 05:45

ER

If (xy)^)(1/2) = xy , what is the value of x + y?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

1, 2

dhushan

05 Sep 2009, 19:30

30

20

15,955

by: Bunuel

30 Jan 2023, 00:05

ER

If a b, is 1/(a-b) > ab ? (1) |a| > |b| (2) a < b

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

mun23

27 Feb 2013, 13:17

74

11

15,951

by: bumpbot

05 Aug 2025, 04:40

ER

Is x^2+y^2 divisible by 5?

Poor Quality

Poor Quality hide tags

ctrlaltdel

14 Nov 2009, 18:56

35

13

15,942

by: deeuk

10 Nov 2014, 01:27

ER

From a group of 10 people, a committee of four people is to

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

registerincog

20 Nov 2013, 03:12

78

7

15,928

by: bumpbot

06 Apr 2025, 08:04

ER

If x is a positive integer greater than 1, is x a prime numb

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

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

Bunuel

14 Feb 2014, 02:13

87

19

15,927

by: Bunuel

29 Jul 2024, 02:01

ER

Iris delivered newspapers for 7 consecutive weeks. In the sequence

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

11 Aug 2023, 05:00

46

3

15,925

by: bumpbot

15 Sep 2025, 08:08

ER

A bigger circle (with center A) and a smaller circle (with center B) a

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

EgmatQuantExpert

21 May 2020, 01:27

140

13

15,923

by: bumpbot

01 Jun 2023, 08:28

ER

What is the value of k?

Sub 505 (Easy) | Exponents

Sub 505 (Easy) | Exponents hide tags

Nadiuska

19 Nov 2015, 10:43

30

10

15,920

by: bumpbot

17 Nov 2025, 18:26

ER

In the xy – plane, what is the slope of line perpendicular

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

MichelleSavina

23 Jan 2011, 11:38

14

6

15,913

by: bumpbot

16 Sep 2020, 19:43

ER

If r and s are nonzero integers, is r/s an integer ?

505-555 (Easy) | Algebra, Number Properties

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

Bunuel

03 Oct 2018, 03:58

58

4

15,911

by: bumpbot

23 Aug 2025, 10:15

ER

If n is a positive integer, is n odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

14 Jul 2014, 03:38

18

8

15,904

by: HarshaBujji

05 Jan 2024, 07:37

ER

The median length of the 13 logs in shipment x was 84 inches, and the

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

thinktank

01 Apr 2013, 07:43

64

5

15,902

by: bumpbot

14 Dec 2025, 01:23

ER

Each of the offices in a certain building has a floor area

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

wshaffer

02 Jul 2013, 08:48

15

8

15,897

by: bumpbot

09 Feb 2023, 07:37

ER

Each member of a pack of 55 wolves has either brown or blue

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

GMATT73

25 Mar 2006, 22:17

46

10

15,891

by: Bunuel

31 Jan 2014, 08:11

ER

In how many ways can a coach select a 4-person university team from a

505-555 (Easy) | Combinations +2 tags

505-555 (Easy) | Combinations, Statistics and Sets Problems, Word Problems hide tags

1, 2

pate13

24 Aug 2015, 17:49

64

22

15,868

by: bumpbot

18 Apr 2025, 05:16

ER

If a certain mixture consists of sugar and cinnamon, how many ounces o

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

mfl6189

16 Nov 2018, 17:41

21

7

15,859

by: bumpbot

17 Nov 2025, 04:29

ER

All of the members of club Y are either Democrats or Republi

555-605 (Medium) | Fractions and Ratios

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

sonibubu

14 Sep 2013, 07:08

60

6

15,822

by: bumpbot

13 Aug 2025, 13:56

ER

What is the 6th term of the Arithmetic sequence?

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

Bunuel

09 Mar 2016, 13:31

27

3

15,816

by: Adit_

04 Apr 2026, 09:04

ER

If abcd is not equal to zero, is abcd <0 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

samusa

23 May 2018, 01:03

134

17

15,800

by: bumpbot

21 Sep 2024, 23:28

ER

Is the triangle ABC, right angled at B?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Smita04

09 Feb 2012, 18:40

51

10

15,796

by: bumpbot

24 Sep 2023, 21:51

ER

Tickets to a play cost $10 for children and $25 for adults. If 90

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Gmatdecoder

30 Apr 2015, 09:08

46

10

15,795

by: bumpbot

04 Nov 2025, 00:30

ER

The results of a certain experiment included 6 data values

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

udaymathapati

23 Jun 2010, 12:30

23

5

15,794

by: bumpbot

02 Mar 2026, 04:37

ER

To install cable television in a home, a certain cable company charges

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Stiv

21 Oct 2019, 02:28

48

6

15,793

by: bumpbot

06 Dec 2025, 16:17

ER

A circular pizza is cut into eight wedge-shaped slices of equal size.

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

enigma123

18 Mar 2012, 11:05

15

8

15,791

by: bumpbot

27 Dec 2020, 08:31

ER

In the first hour of a bake sale, students sold either cho

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

emmak

08 Jun 2013, 19:04

90

14

15,785

by: bumpbot

08 Jul 2025, 18:06

ER

If n is an integer, is n + 1 a prime number?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

12 Jun 2013, 22:50

22

12

15,775

by: bumpbot

13 Oct 2025, 23:14

ER

A cube is made up of equal smaller cubes. Two of the sides

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

SVaidyaraman

19 Mar 2013, 23:17

60

9

15,763

by: bumpbot

21 Feb 2024, 02:42