GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

176

15

78,789

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

856

24

188,563

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

487,994

by: bb

29 Aug 2025, 13:27

ER

What is the ratio of x:y:z? (1) z = 1 and xy =32 (2) x/y = 2 and z/y =

Sub 505 (Easy) | Algebra, Fractions and Ratios

Sub 505 (Easy) | Algebra, Fractions and Ratios hide tags

Bunuel

24 May 2018, 06:47

22

4

11,852

by: bumpbot

16 May 2024, 19:28

ER

The ration r/s is expressed as a decimal. Is r/s, a terminating decima

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

siddharthsinha123

19 Jan 2017, 02:01

47

11

11,855

by: bumpbot

07 Sep 2024, 10:30

ER

If x^2 + 5y = 49. Is y an integer?

705-805 (Hard) | Algebra, Number Properties

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

tejal777

04 Oct 2009, 04:25

52

5

11,868

by: bumpbot

10 Jul 2025, 10:46

ER

If 4 students were added to a dance class, would the teacher

555-605 (Medium) | Multiples and Factors

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

piyushksharma

10 May 2012, 05:34

14

9

11,871

by: bumpbot

26 Nov 2024, 22:30

ER

A number of people shared a meal, intending to divide the cost evenly

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

lmuenzel

27 Jan 2017, 06:18

30

7

11,871

by: bumpbot

09 Jan 2025, 03:45

ER

Joe, Bob and Dan worked in the ratio of 1:2:4 hours, respectively. How

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

07 Oct 2014, 08:55

11

4

11,882

by: bumpbot

24 Apr 2025, 07:17

ER

A company makes bolts of only two sizes: small and large. Each small

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 03:37

74

9

11,891

by: bumpbot

27 Jan 2026, 04:50

ER

If set Z has a median of 19 , what is the range of set Z?

555-605 (Medium) | Statistics and Sets Problems

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

rahularke

15 Sep 2009, 08:24

33

13

11,892

by: bumpbot

26 Apr 2025, 06:10

ER

The average of several test scores is 80. After that average was calcu

555-605 (Medium) | Statistics and Sets Problems, Word Problems

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

Bunuel

12 Feb 2015, 07:08

12

5

11,896

by: bumpbot

28 Jul 2025, 10:59

ER

Is 7 < n^(1/2) < 8? (1) n > 50 (2) n < 60

Sub 505 (Easy) | Inequalities, Roots

Sub 505 (Easy) | Inequalities, Roots hide tags

cmugeria

17 Aug 2010, 08:45

15

10

11,899

by: bumpbot

18 Jun 2024, 02:59

ER

Is x^3 > x^2?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

1, 2

seekmba

22 Feb 2014, 13:21

21

27

11,902

by: bumpbot

18 Feb 2022, 08:50

ER

The government of Nation X makes policy decisions intended to advance

705-805 (Hard) | Non-Math Related

705-805 (Hard) | Non-Math Related hide tags

gmatt1476

30 May 2024, 10:32

131

17

11,903

by: rashminuligonda

26 Apr 2026, 06:54

ER

A retailer sells only radios and clocks. If she currently has 44 total

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

jlgdr

18 Sep 2013, 15:50

47

12

11,909

by: bumpbot

24 Dec 2025, 05:31

ER

If the average (arithmetic mean) of six different numbers is 25, how m

605-655 (Medium) | Number Properties, Statistics and Sets Problems

605-655 (Medium) | Number Properties, Statistics and Sets Problems hide tags

Bunuel

12 Nov 2014, 09:48

19

5

11,914

by: bumpbot

22 Sep 2022, 13:27

ER

Is xy < 0? (1) 5|x| + |y| = 0 (2) |x| + 5|y| = 0

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Carcass

08 May 2012, 03:25

28

14

11,915

by: bumpbot

26 Jul 2025, 11:10

ER

If xy 0, is x^y > 0 ?

655-705 (Hard) | Exponents +2 tags

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

Bunuel

20 Jul 2014, 11:23

63

11

11,921

by: bumpbot

16 Sep 2025, 06:24

ER

Company X is forming a two-person committee by selecting one

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

martie11

11 Jul 2013, 01:35

69

18

11,931

by: bumpbot

31 Aug 2025, 22:25

ER

In the month of June, a street vendor sold 10% more hot dogs than he

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

30 Sep 2014, 09:17

6

3

11,933

by: bumpbot

07 Apr 2025, 10:16

ER

John and Fawn, each drinking at a constant pace, can finish

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

Chembeti

17 Feb 2012, 19:53

35

12

11,933

by: bumpbot

14 Mar 2026, 01:02

ER

In the diagram above, coordinates are given for three of the vertices

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

06 Mar 2015, 07:30

23

11

11,943

by: bumpbot

07 Nov 2022, 11:37

ER

Is N divisible by 7?

505-555 (Easy) | Multiples and Factors

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

Aple

07 Feb 2012, 15:12

28

15

11,944

by: bumpbot

23 Jan 2023, 06:53

ER

If a certain grove consists of 36 pecan trees, what was the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ashiima

08 May 2015, 08:44

40

5

11,956

by: bumpbot

19 Jul 2025, 12:37

ER

A piece of wood 5 feet long is cut into three smaller pieces. How long

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

16 Oct 2017, 10:24

7

5

11,964

by: bumpbot

14 Sep 2024, 04:24

ER

If t and u are positive integers, what is the value of

705-805 (Hard) | Algebra, Exponents

705-805 (Hard) | Algebra, Exponents hide tags

manulath

25 Aug 2012, 00:35

34

9

11,969

by: bumpbot

13 Oct 2022, 03:55

ER

What is the price for a certain meal listed on a menu? (1) The total

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

anairamitch1804

22 Jan 2017, 19:23

12

3

11,969

by: bumpbot

29 Oct 2023, 03:27

ER

If x, y, and z are integers and (2^x)*(5^y)*z = 0.00064, what is the

605-655 (Medium) | Algebra, Exponents

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

Bunuel

06 Nov 2014, 09:18

22

11

11,972

by: BrentGMATPrepNow

04 Apr 2019, 09:54

ER

What was the percent increase of Company A's stock between June 1 and

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

31 May 2016, 02:40

2

11,976

by: bumpbot

10 Jan 2024, 09:44

ER

Is (y - 10)^2 > (x + 10)^2

805+ (Hard) | Algebra, Inequalities

805+ (Hard) | Algebra, Inequalities hide tags

JJ2014

05 Apr 2018, 13:53

78

9

11,981

by: bumpbot

13 Dec 2023, 12:20

ER

A repunit is a positive integer that contains only the digit

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

WoundedTiger

22 Jul 2014, 02:52

53

4

11,982

by: bumpbot

06 Dec 2024, 01:41

ER -1

If Machine B and Machine C work together at their constant individual

605-655 (Medium) | Work and Rate Problems

605-655 (Medium) | Work and Rate Problems hide tags

Bunuel

27 Jan 2015, 07:41

51

16

11,985

by: bumpbot

12 Nov 2025, 07:16

ER

How many positive factors does the positive integer x have?

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

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

Nevernevergiveup

26 Dec 2015, 03:12

29

9

11,990

by: bumpbot

20 Apr 2024, 06:51

ER

What is the tenth term in a series of 89 consecutive

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

brstorewala

17 May 2003, 03:00

33

16

11,999

by: bumpbot

24 Apr 2026, 03:35

ER

What will be the value of a/b ? Given that a and b are

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

MichelleSavina

23 Jan 2011, 11:39

24

6

12,000

by: Aannie

18 Aug 2021, 09:29

ER

A small radio station was jointly owned by two partners unti

705-805 (Hard) | Min-Max Problems

705-805 (Hard) | Min-Max Problems hide tags

blueseas

26 Aug 2013, 09:48

50

3

12,003

by: bumpbot

11 Feb 2026, 00:35

ER

What is the value of x ? (1) 4^(x + 1) + 4^x = 320 (2) x^2 = 9

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

gmatt1476

21 Sep 2019, 16:49

36

4

12,007

by: bumpbot

25 Sep 2025, 20:32

ER

An office supply store received a shipment of boxes of pencils. How ma

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

15 Nov 2017, 08:38

12

7

12,009

by: bumpbot

27 Sep 2025, 08:52

ER

If 2x(5n) = t, whatis the value of t?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

29 Jan 2014, 02:13

8

5

12,011

by: totaltestprepNick

26 Feb 2026, 13:04

ER

Was Lisa's salary at least twice as much as Julie's annual

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

TheBigCheese

28 Jan 2012, 06:11

13

8

12,018

by: bumpbot

18 Dec 2021, 03:20

ER

A craftsperson made 126 ornaments and put them all into boxes.

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

dcummins

26 Nov 2018, 02:28

59

7

12,025

by: kelly_jacques

08 Jul 2023, 08:39

ER

If n is an integer, is n even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

NoHalfMeasures

10 Aug 2014, 12:22

12

13

12,026

by: Bunuel

20 Aug 2025, 02:54

ER

Did Sally pay less than x dollars, including sales tax, for her

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

16 Dec 2014, 05:28

19

4

12,030

by: Saurav1408

14 Dec 2025, 23:35

ER

Hose A runs at a constant rate and can fill a 11,000 gallon

555-605 (Medium) | Work and Rate Problems

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

shreerajp99

17 Jan 2013, 10:25

33

7

12,032

by: bumpbot

16 Oct 2022, 04:46

ER

If ab 0, is ((a - b)/(a^(-1) - b^(-1)))^(-1) > a + b ?

705-805 (Hard) | Absolute Values, Inequalities

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

Manhnip

30 Sep 2022, 06:22

20

4

12,032

by: bumpbot

21 Jun 2024, 10:51

ER

If n is an integer, is n/7 an integer? (1) 3n/7 is an integer (2) 5n/7

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

03 Oct 2018, 04:02

18

9

12,035

by: bumpbot

16 Mar 2025, 07:17

ER

The sequence a1,a2,,an, is such that an=(an1)(an3) for

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Bunuel

28 Jan 2015, 07:58

20

10

12,036

by: bumpbot

24 Jul 2025, 12:30

ER

Is the product of four consecutive even integers positive?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

rxs0005

23 Jul 2010, 09:40

23

6

12,037

by: bumpbot

18 Oct 2024, 01:34

ER

What is the value of mn?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

1, 2

GMATBusters

07 Dec 2019, 18:56

21

31

12,037

by: bumpbot

15 Dec 2024, 08:56

ER

A group of students, each of whom has prepared a presentation, is

605-655 (Medium) | Combinations

605-655 (Medium) | Combinations hide tags

AbdurRakib

05 Jun 2016, 14:32

66

8

12,043

by: bumpbot

15 Oct 2025, 23:45

ER

Of the people surveyed last Monday, 60% were homeowners. Of the people

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

HarveyKlaus

14 Aug 2016, 11:06

26

5

12,056

by: bumpbot

19 Jan 2024, 05:42

ER

If z is a positive integer is root(Z) an integer ?

655-705 (Hard) | Algebra, Number Properties

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

rxs0005

22 Nov 2017, 00:27

50

10

12,056

by: bumpbot

08 Jul 2025, 03:13