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

78,652

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

188,477

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

487,867

by: bb

29 Aug 2025, 13:27

ER

If 38 percent of the departments in a certain research organization

705-805 (Hard) | Statistics and Sets Problems

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

guddo

24 Jan 2024, 02:18

134

16

15,152

by: nikita.nanda1810

01 Jan 2026, 01:12

ER

(n-x)+(n-y)+(n-z)+(n-k) What is the value of the expression above?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

19 Nov 2017, 09:15

31

4

15,128

by: akshayk

21 Nov 2017, 12:17

ER

If a is positive, what is the value of b?

605-655 (Medium) | Absolute Values, Algebra

605-655 (Medium) | Absolute Values, Algebra hide tags

Chembeti

25 Feb 2012, 22:30

88

7

15,118

by: bumpbot

23 Nov 2024, 07:35

ER

Are the integers x, y and z consecutive?

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

11 May 2016, 03:19

9

5

15,117

by: bumpbot

05 Jan 2026, 02:16

ER

A certain bread recipe calls for wheat, white flour, and oat

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

azule45

29 Oct 2010, 11:08

49

5

15,111

by: bumpbot

07 Jan 2026, 10:55

ER

What is the perimeter of rectangle ABCD ?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

jamifahad

29 Sep 2011, 06:05

18

10

15,106

by: bumpbot

13 Aug 2022, 06:49

ER

What is the value of N?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

09 Feb 2015, 06:42

77

13

15,103

by: GMATGuruNY

25 Jul 2024, 17:09

ER

ABC and PQR are both triangles. Is the area of triangle ABC

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

nafishasan60

06 Feb 2012, 01:27

5

6

15,096

by: bumpbot

27 Jun 2016, 10:55

ER

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

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

kapilnegi

15 Jun 2008, 09:04

30

4

15,094

by: Bunuel

07 Jun 2014, 14:29

ER

If r, s, and t are all positive integers, what is the remainder of 2^p

555-605 (Medium) | Number Properties, Remainders

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

Bunuel

23 Oct 2014, 00:40

71

13

15,083

by: bumpbot

01 Jun 2025, 05:06

ER

What is the positive integer n?

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

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

enigma123

12 Jun 2013, 03:15

59

7

15,073

by: bumpbot

03 Jun 2024, 11:51

ER

If a and b are positive integers, what is the greatest commo

655-705 (Hard) | Multiples and Factors

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

Bunuel

12 Jun 2014, 07:37

158

9

15,072

by: bumpbot

24 Nov 2025, 07:31

ER

Committee member W wants to schedule a one-hour meeting on T

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

27 Dec 2013, 05:39

4

15,070

by: bumpbot

02 May 2021, 19:10

ER

If the average (arithmetic mean) of four numbers is 10, how many of

705-805 (Hard) | Statistics and Sets Problems

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

AverageGuy123

27 Feb 2015, 21:22

21

7

15,062

by: bumpbot

03 Jan 2025, 14:13

If sequence S has 200 terms, what is the 192nd term of S

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

seabhi

16 Feb 2014, 01:46

7

4

15,056

by: bumpbot

17 May 2024, 01:28

ER

Is the product of integers M and N even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

EgmatQuantExpert

03 May 2025, 04:35

57

16

15,050

by: bumpbot

30 May 2025, 11:15

ER

A certain straight corridor has four doors, A, B, C and D (in that ord

Sub 505 (Easy) | Arithmetic, Word Problems

Sub 505 (Easy) | Arithmetic, Word Problems hide tags

Bunuel

11 May 2016, 03:20

4

2

15,027

by: bumpbot

16 May 2022, 00:09

ER -1

A stenographer is tasked with typing a certain letter. How many words

605-655 (Medium) | Work and Rate Problems

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

Bunuel

29 Sep 2015, 21:32

42

9

15,026

by: iamjatinagrawal

07 Mar 2026, 04:44

ER

What is the circumference of the circle above?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

JAI HIND

22 Dec 2005, 00:54

27

4

15,026

by: bumpbot

02 Aug 2024, 10:58

ER

Who types at a faster rate, John or Bob?

Sub 505 (Easy) | Work and Rate Problems

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

kanigmat011

03 Mar 2015, 05:34

9

2

15,022

by: bumpbot

03 Nov 2025, 12:20

ER

A sales associate earns a commission of 8% on her first $10,

Sub 505 (Easy) | Percent and Interest Problems

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

Gnpth

16 Jul 2014, 00:04

12

5

15,022

by: Bunuel

15 Jan 2024, 14:28

ER

Is the sum of integers a and b divisible by 7?

655-705 (Hard) | Multiples and Factors, Remainders

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

gmatjon

22 Oct 2009, 20:04

68

17

15,016

by: GMATBusters

30 Aug 2024, 07:12

ER

If ab ≠ 0, does a=b?

605-655 (Medium) | Algebra, Exponents

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

1, 2

gmattokyo

11 Oct 2013, 03:27

34

21

15,015

by: sanyasanha

08 Feb 2023, 21:14

ER

What is the value of y?

805+ (Hard) | Algebra +2 tags

805+ (Hard) | Algebra, Arithmetic, Roots hide tags

GGMU

24 Jun 2016, 08:21

143

18

15,008

by: bumpbot

18 Sep 2022, 11:16

ER

Is 7^7/7^x an integer?

655-705 (Hard) | Algebra +2 tags

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

aramjung

19 Mar 2010, 19:35

38

3

14,999

by: bumpbot

11 Sep 2025, 00:16

ER

In the correctly-worked multiplication problem above, each symbol repr

805+ (Hard) | Arithmetic, Number Properties

805+ (Hard) | Arithmetic, Number Properties hide tags

Bunuel

06 May 2015, 02:36

89

7

14,996

by: bumpbot

18 Jul 2025, 05:56

ER

A mixture of oil, water, and vinegar contains 10% oil. After all of th

505-555 (Easy) | Mixture Problems, Percent and Interest Problems

505-555 (Easy) | Mixture Problems, Percent and Interest Problems hide tags

shasadou

23 Aug 2015, 12:55

52

9

14,980

by: bumpbot

31 Jan 2026, 07:33

ER

|s – t| > ||s| - |t||?

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

fattty

13 Jan 2016, 23:39

131

9

14,976

by: Pranavsawant

28 Oct 2025, 13:47

ER

Last month Alex spent $91 on video game rentals, spending $5 for each

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

MclLaurent

30 Dec 2023, 03:05

66

6

14,975

by: adconsectetur

16 Apr 2026, 10:10

ER

How many newspapers were sold at a certain newsstand today?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

09 Jan 2014, 06:49

3

5

14,969

by: bumpbot

13 Jun 2024, 01:32

ER

Is it true that x > 0?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

viktorija

30 Nov 2014, 16:40

89

14

14,965

by: bumpbot

13 Oct 2024, 04:30

ER

Is quadrilateral PQRS a parallelogram?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

eybrj2

21 Feb 2012, 00:39

39

13

14,955

by: bumpbot

21 Jul 2023, 21:17

ER

Rectangle ABCD is inscribed in circle P. What is the area of circle P?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

AccipiterQ

24 Feb 2018, 00:34

10

4

14,955

by: Nunuboy1994

05 Sep 2017, 16:25

ER

Elena receives a salary plus a commission that is equal to a fixed per

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

15 Jan 2014, 02:48

18

5

14,949

by: totaltestprepNick

04 Mar 2026, 10:35

ER

If x, y and z are positive, is x = y/z^2 ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Feb 2014, 07:50

7

4

14,945

by: bumpbot

15 May 2024, 19:14

ER

A rectangle is defined to be "silver" if and only if the rat

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

TGC

13 Sep 2022, 02:57

81

10

14,940

by: AVMachine

18 Mar 2025, 06:18

ER

How many even different factors does the integer P have?

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

gmihir

19 May 2012, 08:55

46

8

14,937

by: bumpbot

27 Sep 2024, 21:04

ER

A company bought some desks at a price of $150 each and some chairs at

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

mokap25

29 May 2012, 22:30

36

9

14,933

by: bumpbot

08 Jun 2025, 16:14

ER

W, X, Y, and Z represent distinct digits such that WX * YZ = 1995. Wha

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

06 Apr 2015, 07:04

68

11

14,928

by: emmamis

22 May 2025, 23:25

ER

Is x > 0? (1) -2x > 0 (2) x^3 < 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

vmelgargalan

21 Mar 2017, 12:31

13

5

14,926

by: bumpbot

10 Jan 2026, 20:21

ER

Square ABCD has an area of 9 square inches. Sides AD and BC

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

venmic

20 Sep 2022, 01:29

16

9

14,924

by: bumpbot

09 Dec 2023, 03:43

ER

What is the distance between City A and City C ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Apr 2019, 07:35

26

5

14,922

by: bumpbot

24 Jan 2023, 09:51

ER

If s is an integer, is 24 a divisor of s ?

555-605 (Medium) | Multiples and Factors

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

gmatt1476

21 Sep 2019, 19:27

78

16

14,919

by: bumpbot

09 Oct 2025, 11:30

ER

A motorboat, which is set to travel at k kilometers per hour in still

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

23 May 2020, 08:33

67

5

14,916

by: bumpbot

12 Aug 2025, 04:01

ER

In each quarter of 1998, Company M earned more money than in the

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

02 Aug 2018, 04:57

29

8

14,915

by: bumpbot

20 Dec 2025, 13:26

ER

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

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

11 May 2016, 03:17

4

3

14,915

by: bumpbot

02 Nov 2021, 22:58

ER

A stamp collection that has an appraised value of $600 consists of twi

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

averagedude23

10 Nov 2023, 10:26

86

6

14,911

by: KarishmaB

05 May 2025, 23:00

ER

A certain sum was invested in a high-interest bond for which

Poor Quality

Poor Quality hide tags

punyadeep

16 Mar 2011, 07:49

31

15

14,906

by: bumpbot

19 Nov 2014, 11:32

ER

Does the graphical representation of the quadratic function

605-655 (Medium) | Coordinate Plane, Geometry

605-655 (Medium) | Coordinate Plane, Geometry hide tags

shivanigs

03 Oct 2012, 00:20

41

10

14,904

by: Crytiocanalyst

25 Jul 2021, 00:27

ER

If the vertices of a quadrilateral PQRS lie on the circumference of

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

joylive

11 Nov 2017, 05:13

66

9

14,902

by: Binod826

30 Aug 2024, 00:25