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

179

15

79,127

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,763

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

488,351

by: bb

29 Aug 2025, 13:27

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If the price of a magazine is to be doubled, by what percent

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

sky

08 Jul 2010, 04:04

42

9

13,782

by: bumpbot

09 May 2026, 23:54

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At a certain university recreation center, a member can receive a 30-m

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

gmatt1476

21 Sep 2019, 16:20

71

9

15,611

by: AbhishekP220108

10 May 2026, 05:14

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Simon and Tara, who live in Neighborhood Z, wish to watch a movie toge

Sub 505 (Easy) | Non-Math Related

Sub 505 (Easy) | Non-Math Related hide tags

GMATF685

16 Nov 2023, 22:17

15

3

5,363

by: bumpbot

10 May 2026, 06:13

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1/3 of golfers also play tennis, 3/5 of tennis players also surf. 4/7

805+ (Hard) | Fractions and Ratios +2 tags

805+ (Hard) | Fractions and Ratios, Overlapping Sets, Probability hide tags

NikkiL

01 Jan 2021, 00:29

39

7

7,417

by: Adit_

10 May 2026, 08:14

Who is the fastest among the three workers a, b and c? (1) a

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gmatblast

17 Jan 2004, 18:55

1

5

18,696

by: gmatblast

21 Jan 2004, 09:33

A fishpole is to be encased in a rectangular box with a square base.

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mosquitojoyride

21 Sep 2009, 16:43

6

4,264

by: jeeteshsingh

05 Jan 2010, 13:46

Set A and B are 2 sets of numbers. A has a standard

605-655 (Medium) | Statistics and Sets Problems

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

seekmba

23 Sep 2010, 18:39

9

7

5,660

by: Raths

16 Oct 2010, 07:19

A right polygon is inscribed in a circle. How many sides

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aalriy

10 Dec 2010, 08:05

1

2

5,008

by: aalriy

10 Dec 2010, 10:58

What percent of x is 3/4?

Sub 505 (Easy) | Percent and Interest Problems

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

jscott319

11 Dec 2010, 20:03

2

4,977

by: jscott319

11 Dec 2010, 21:18

If b is a positive integer less than 8, is c less than the

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

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

gmatpapa

19 Apr 2011, 05:26

5

4

3,864

by: varunmaheshwari

19 Apr 2011, 06:48

In triangle ABC, point X is the midpoint of side AC and

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

burnttwinky

11 Jul 2013, 02:29

37

5

8,801

by: siddhans

02 Jul 2011, 22:41

What is the perimeter of the isosceles right triangle ABC

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rxs0005

11 Jul 2013, 02:23

7

10

4,793

by: Sudhanshuacharya

16 Jul 2011, 11:42

If S is an infinite set of real numbers, is there a number

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tracyyahoo

24 Jul 2011, 03:33

11

12

7,379

by: petrifiedbutstanding

13 Aug 2011, 08:39

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

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

DeeptiM

28 Aug 2011, 12:33

4

2

3,136

by: fluke

28 Aug 2011, 13:15

Is x = 2? (1) x > 1 (2) x is one of the numbers from the

Sub 505 (Easy) | Statistics and Sets Problems

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

nonameee

13 May 2024, 01:09

3

2,662

by: fluke

05 Oct 2011, 04:56

Square ABCD encloses a circle of area 154 at its center

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Smita04

09 Feb 2012, 23:11

6

2,788

by: sdas

11 Feb 2012, 08:27

If the market value of a car was $6,000 exactly 3 years ago

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hfbamafan

08 May 2012, 22:28

8

2

10,024

by: chibiutena

09 May 2012, 09:38

X and Y are positive numbers. Is the hundredth digit of XY

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g81

06 Jun 2012, 13:38

1

2

2,433

by: g81

06 Jun 2012, 14:05

What is the value of X

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jayoptimist

04 Jul 2012, 09:23

3

2,568

by: cyberjadugar

04 Jul 2012, 10:42

Find the number of days in the year X

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

siddharthamaridi

20 Mar 2025, 08:32

2

3,004

by: MacFauz

14 Nov 2012, 02:07

Machine A can fill an order of widgets in a hours. Machine B

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

nshang

22 Jul 2013, 06:25

88

2

30,498

by: Sachin9

16 Jan 2013, 02:08

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

15,605

by: PrashantPonde

26 Jan 2013, 00:41

Is j-k > 1/j - 1/k ?

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guerrero25

13 Apr 2013, 12:00

4

5

3,790

by: mau5

15 Apr 2013, 11:09

Is x^3-6x^2+11x-60?

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Sergiy

18 Apr 2013, 04:19

4

3,369

by: Sergiy

22 Apr 2013, 23:35

An IT Department employs 8 people at an average salary of $8

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SpencerH

24 Apr 2013, 21:05

4

3

3,220

by: doe007

24 Apr 2013, 22:33

A runner starts running on a circular path of radius 'r'

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atalpanditgmat

18 Jun 2013, 22:16

4

3

7,797

by: mattce

20 Jun 2013, 09:03

A non empty set S has less than four elements. How many

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innocous

25 Jul 2013, 07:25

4

2,329

by: Observer

25 Jul 2013, 12:40

A car is travelling in a constant speed to cover a distance

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karthiksms

28 May 2012, 11:54

5

6

5,438

by: WholeLottaLove

01 Aug 2013, 15:12

Jenifer, David and Steve are children of Mrs. Noris.

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Asifpirlo

05 Aug 2013, 11:35

1

3

3,070

by: Asifpirlo

05 Aug 2013, 11:34

The average weight of the students

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Gian

10 Aug 2013, 05:55

1

3

4,575

by: maaadhu

10 Aug 2013, 06:09

A pencil costs $3 and a pen costs $7. If pens and pencils

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innocous

16 Aug 2013, 08:36

3

2

3,227

by: zerosleep

19 Aug 2013, 07:21

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If A, B & C can build a wall in 4 hours,working together,

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innocous

02 Sep 2013, 12:39

17

11

7,801

by: Amateur

30 Dec 2013, 15:21

The volume of cylinder A is how much more than the volume of cylinder

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DangerPenguin

29 Sep 2014, 07:37

1

8

4,105

by: DangerPenguin

29 Sep 2014, 07:37

A regular hexagon is inscribed in a circle. What is the area

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smartyman

02 Jul 2014, 01:03

2

5,119

by: dmmk

04 Nov 2014, 08:34

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In the figure above, x, y, and z denote the lengths of the sides of a

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

17 Dec 2014, 07:48

4

6,067

by: beattheheat

20 Dec 2014, 10:48

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In a serving of a breakfast cereal that contains only oats, raisins

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:24

4

8,377

by: g106

23 Dec 2014, 09:42

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In a certain coding scheme, each word is encoded by replacing each

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:20

3

3,769

by: g106

23 Dec 2014, 11:33

A set S contains five numbers k, k + 1, 2k - 1, 5k + 7 and 6k + 8. If

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itzmyzone911

03 May 2015, 22:42

3

10

3,407

by: teplyam

18 Jun 2015, 23:57

a, b and c are integers such that a < b < c. Do they have a

805+ (Hard) | Statistics and Sets Problems

805+ (Hard) | Statistics and Sets Problems hide tags

cyberjadugar

09 Jun 2012, 12:04

3

2

3,337

by: mika84

22 Jun 2015, 14:06

It will rain today. Will it rain tomorrow?

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UMB

15 Jul 2015, 08:00

2

10

45,692

by: georgesanjay

15 Jul 2015, 07:48

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Is x odd? (1) x is a multiple of 3. (2) x is a multiple of 5.

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

27 Aug 2015, 01:20

4

2,282

by: TheKingInTheNorth

28 Aug 2015, 07:13

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If x is a positive integer and x <= 250, what is the value of x?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

29 Oct 2015, 01:27

1

2

2,328

by: TheKingInTheNorth

29 Oct 2015, 04:46

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If x < y, is x^4 < y^4 ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

01 Nov 2015, 09:20

1

5

2,812

by: padman777

02 Nov 2015, 09:08

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In the figure presented, if lines j and k are parallel, what is the va

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

02 Dec 2015, 07:01

3

2,786

by: mango aadmi

02 Dec 2015, 07:51

What is the value of N?

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

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

banksy

16 Mar 2011, 09:03

2

4

3,926

by: hdwnkr

24 Dec 2015, 12:02

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Does x = y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

31 Jan 2016, 08:23

2

4

2,604

by: Donnie84

03 Feb 2016, 19:52

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What is the radius, in inches, of Circle O?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

14 Feb 2016, 03:06

3

4

2,781

by: GGMU

15 Feb 2016, 10:43

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What is the units digit of the product of the two positive integers x

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

18 Apr 2016, 08:20

1

3

2,187

by: y4nkee

20 Apr 2016, 23:45

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If XY, PQ, and RS represent unique two-digit integers, what is the uni

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

20 Apr 2016, 00:59

4

2,465

by: y4nkee

21 Apr 2016, 00:12

ER

What is the units digit of 3^n?

555-605 (Medium) | Exponents, Number Properties

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

Bunuel

22 Apr 2016, 04:41

2

4,111

by: Icecream87

26 Apr 2016, 05:02