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

78,699

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

856

24

188,511

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

487,921

by: bb

29 Aug 2025, 13:27

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

15,893

by: Bunuel

31 Jan 2014, 08:11

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

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

15,905

by: bumpbot

14 Dec 2025, 01:23

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

15,909

by: HarshaBujji

05 Jan 2024, 07:37

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

15,913

by: bumpbot

23 Aug 2025, 10:15

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

15,916

by: bumpbot

16 Sep 2020, 19:43

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

15,921

by: bumpbot

17 Nov 2025, 18:26

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

15,925

by: bumpbot

01 Jun 2023, 08:28

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

15,928

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

15,930

by: bumpbot

15 Sep 2025, 08:08

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

15,933

by: bumpbot

06 Apr 2025, 08:04

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

Poor Quality

Poor Quality hide tags

ctrlaltdel

14 Nov 2009, 18:56

35

13

15,943

by: deeuk

10 Nov 2014, 01:27

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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

15,957

by: bumpbot

05 Aug 2025, 04:40

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

15,959

by: Bunuel

30 Jan 2023, 00:05

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

15,963

by: bumpbot

13 Dec 2023, 10:42

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

15,971

by: bumpbot

08 Mar 2025, 05:38

ER

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

605-655 (Medium) | Arithmetic, Distance and Speed Problems

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

Laracbo

27 Feb 2024, 16:52

134

12

15,979

by: Bunuel

14 Apr 2026, 21:55

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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

15,985

by: bumpbot

01 Nov 2024, 02:40

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

15,997

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

16,001

by: NEYR0N

05 Apr 2025, 04:54

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

16,002

by: agrasan

16 Jul 2025, 22:23

ER

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

16,010

by: bumpbot

05 Jan 2026, 07:43

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

16,014

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

16,016

by: bumpbot

09 May 2023, 12:59

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

16,029

by: bumpbot

29 Apr 2024, 10:24

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

16,039

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

16,042

by: totaltestprepNick

23 Feb 2026, 13:49

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

16,047

by: GMATinsight

13 Feb 2025, 08:53

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

16,053

by: bumpbot

26 Aug 2025, 23:56

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

16,058

by: bumpbot

02 Aug 2025, 03:41

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

16,068

by: bumpbot

13 Oct 2025, 11:39

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

16,070

by: bumpbot

23 Jul 2025, 01:00

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

16,075

by: bumpbot

10 Mar 2025, 03:18

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

16,089

by: Basshead

22 Nov 2020, 12:29

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

16,095

by: bumpbot

02 Sep 2025, 10:03

ER

Does the product jkmn equal 1?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

paki

07 Oct 2022, 08:18

13

8

16,103

by: bumpbot

05 Aug 2025, 10:17

ER

The symbol Ω represents one of the following operations: add

555-605 (Medium) | Algebra +2 tags

555-605 (Medium) | Algebra, Arithmetic, Functions and Custom Characters hide tags

ROckHIsT

29 Dec 2013, 03:38

56

8

16,105

by: bumpbot

16 Oct 2024, 07:43

ER

If a and b are distinct integers and their product is not equal to

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

janani28

01 Sep 2014, 12:09

157

9

16,113

by: bumpbot

26 Aug 2025, 23:04

ER

If x is a positive integer and w is a negative integer, what is the va

505-555 (Easy) | Exponents

505-555 (Easy) | Exponents hide tags

Bunuel

11 Oct 2018, 21:50

67

8

16,120

by: bumpbot

03 Sep 2024, 09:38

ER

Each of the dinners served at a banquet was either chicken or beef or

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

Bunuel

14 Oct 2020, 00:15

61

8

16,125

by: bumpbot

19 Mar 2025, 01:30

ER

If x is an integer, what is the value of x?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

banksy

24 Feb 2011, 13:47

49

6

16,135

by: bumpbot

08 Jan 2026, 08:57

ER

If n is a positive integer, is (n - 1)(n)(n + 1) a multiple of 24?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amathews

13 Apr 2017, 12:38

102

14

16,139

by: bumpbot

30 May 2025, 09:21

ER

If r is represented by the decimal 0.t5, what is the digit ?

505-555 (Easy) | Fractions and Ratios

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

Bunuel

22 Dec 2014, 08:45

35

11

16,141

by: bumpbot

01 Mar 2025, 07:24

ER

What was the median of the daily numbers of phone calls received at a

505-555 (Easy) | Statistics and Sets Problems

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

houston1980

01 Jul 2023, 09:44

63

3

16,144

by: bumpbot

20 Jul 2025, 09:18

ER

When positive integer x is divided by 7 the quotient is q and the rema

705-805 (Hard) | Multiples and Factors

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

registerincog

18 Nov 2013, 08:55

40

10

16,145

by: Bunuel

09 Sep 2024, 00:15

ER

At a certain library, 1600 books were checked out by patrons yesterday

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

mmdfl

04 Feb 2024, 11:17

156

12

16,151

by: Bunuel

22 Mar 2026, 11:59

ER

Is the positive integer n an odd integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Stiv

01 May 2012, 01:13

23

5

16,155

by: bumpbot

12 Nov 2024, 01:44

ER

What is the remainder when positive integer n is divided by 4?

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

Bunuel

02 Apr 2015, 04:23

23

11

16,183

by: bumpbot

30 Apr 2023, 21:44