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

181

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16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

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Bunuel

01 Jan 2026, 05:45

861

24

190,830

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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

490,779

by: bb

29 Aug 2025, 13:27

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Is square root of a positive integer x an integer?

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

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summer101

03 Jun 2013, 07:14

37

2

9,819

by: Bunuel

05 Jun 2013, 03:07

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What is the value of a+b ?

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summer101

02 Jun 2013, 05:07

2

2,071

by: Bunuel

02 Jun 2013, 10:45

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A home owner must pick between paint A, which costs $6.00

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gmac25

17 Aug 2009, 15:08

7

8

9,206

by: Bunuel

12 May 2013, 02:50

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What is the units digit of a^18?

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apoorvarora

09 Dec 2012, 07:56

6

14

4,327

by: walker

11 May 2013, 08:19

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The useful life of a certain piece of equipment is

555-605 (Medium) | Word Problems

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kairoshan

19 Nov 2009, 06:45

7

5

16,990

by: Bunuel

05 May 2013, 04:21

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

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SpencerH

24 Apr 2013, 21:05

4

3

3,238

by: doe007

24 Apr 2013, 22:33

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

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Sergiy

18 Apr 2013, 04:19

4

3,408

by: Sergiy

22 Apr 2013, 23:35

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Is x an odd number? (1) n^x = 1 (2) n^2 is a prime number

655-705 (Hard) | Algebra +2 tags

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MacFauz

28 Feb 2013, 07:23

8

10

4,452

by: manishuol

19 Apr 2013, 21:48

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

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guerrero25

13 Apr 2013, 12:00

4

5

3,831

by: mau5

15 Apr 2013, 11:09

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Is P the youngest of P,Q ,R and S?

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siddharthamaridi

14 Nov 2012, 02:30

4

19,678

by: VeritasPrepRon

21 Mar 2013, 10:51

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A certain electronic memory game is played by answering equa

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ankitD

09 Feb 2013, 04:54

1

5

3,031

by: IanStewart

10 Feb 2013, 07:24

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

15,669

by: PrashantPonde

26 Jan 2013, 00:41

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If angle BAD is a right angle, what is the length of side

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

gottabwise

23 Jan 2010, 16:43

6

5

12,980

by: Bunuel

24 Jan 2013, 07:24

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

805+ (Hard) | Work and Rate Problems

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nshang

22 Jul 2013, 06:25

88

2

30,560

by: Sachin9

16 Jan 2013, 02:08

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In a class, each of the students were asked to pick an integ

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tabsang

25 Dec 2012, 01:59

2

4,034

by: tabsang

25 Dec 2012, 05:43

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Is |a| = b - c ? (1) a + c != b (2) a < 0

705-805 (Hard) | Absolute Values, Inequalities

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

fanatico

23 May 2011, 19:33

6

12

4,900

by: Bunuel

13 Dec 2012, 07:38

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If f(x) = 2^x + 2^-2, and x is an integer

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gmatbull

06 Dec 2012, 05:07

3

2,513

by: mikemcgarry

07 Dec 2012, 12:05

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(x-x_1)*(x-x_2)*(x-x_3)........(x-x_n)

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MacFauz

04 Dec 2012, 01:11

6

5,586

by: MacFauz

06 Dec 2012, 01:52

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

3,027

by: MacFauz

14 Nov 2012, 02:07

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A number n has the prime factors a, b, and c, and only these

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actleader

06 Nov 2012, 22:59

3

4,387

by: dabral

07 Nov 2012, 14:37

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What is the value of x^2+ 5x +4?

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nkimidi7y

05 Sep 2012, 12:30

4

15

5,338

by: AbhiJ

31 Oct 2012, 12:56

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What is the probability that a field gun will hit thrice on

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Smita04

09 Feb 2012, 23:35

21

6

10,319

by: Bunuel

29 Oct 2012, 13:49

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Andy, George, and Sally are a team of consultants working on

705-805 (Hard) | Work and Rate Problems

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

R2I4D

17 May 2010, 17:17

39

10

13,258

by: IanStewart

25 Sep 2012, 00:33

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What is the slope of the line L ?

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shivanigs

11 Sep 2012, 22:30

8

4

11,419

by: Bunuel

12 Sep 2012, 02:13

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Is |x| < 1?

705-805 (Hard) | Absolute Values

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Aximili85

29 Aug 2012, 10:11

1

4

4,770

by: Bunuel

30 Aug 2012, 01:48

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If sets X and Y have an equal number of elements, does set X have a

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enigma123

23 Nov 2011, 13:58

26

7

19,611

by: alphabeta1234

01 Aug 2012, 18:44

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x is an integer and x raised to any odd integer is greater

805+ (Hard) | Algebra, Exponents

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jamifahad

19 Jul 2012, 02:55

28

8

14,743

by: gurpreetsingh

19 Jul 2012, 03:01

What is the value of X

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jayoptimist

04 Jul 2012, 09:23

3

2,592

by: cyberjadugar

04 Jul 2012, 10:42

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For positive integer x, y, and z, is y > z?

555-605 (Medium) | Remainders

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banksy

17 Mar 2011, 14:42

4

1

5,039

by: Bunuel

21 Jun 2012, 12:25

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In which quadrant of the coordinate plane does the point

705-805 (Hard) | Absolute Values, Coordinate Plane

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Wengen

18 Jun 2012, 01:14

5

4

5,792

by: Bunuel

18 Jun 2012, 01:14

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What is the remainder when n is divided by 15?

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mithun2vrs

27 Apr 2012, 11:03

9

5

9,937

by: Bunuel

12 Jun 2012, 04:56

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

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g81

06 Jun 2012, 13:38

1

2

2,460

by: g81

06 Jun 2012, 14:05

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If r/s = 2/5 , what is the value of rs ?

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piyatiwari

30 May 2012, 17:27

2

4

4,497

by: rggoel9

05 Jun 2012, 04:56

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

10,044

by: chibiutena

09 May 2012, 09:38

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If x does not equal 0 what is the value of (x^p/x^q)^2

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Viking81

18 Apr 2012, 01:48

2

3

5,795

by: aalba005

23 Apr 2012, 12:13

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Three Children Alice, Brain & Chris have a total of

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qweert

07 Aug 2010, 22:30

6

10

5,150

by: Bunuel

29 Mar 2012, 05:16

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If S is a set of ten consecutive integers, is the integer 5

555-605 (Medium) | Statistics and Sets Problems

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

Jasonammex

24 Aug 2011, 01:47

2

1

5,604

by: Bunuel

19 Feb 2012, 04:38

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How far in miles is city A from city B?

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Smita04

11 Feb 2012, 05:10

3

4

5,915

by: mikemcgarry

11 Feb 2012, 15:35

Square ABCD encloses a circle of area 154 at its center

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Smita04

09 Feb 2012, 23:11

6

2,824

by: sdas

11 Feb 2012, 08:27

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If m and z are integers, is z divisible by 11 ?

555-605 (Medium) | Multiples and Factors

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rxs0005

06 Feb 2012, 09:11

8

5

4,597

by: Bunuel

06 Feb 2012, 14:05

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is (a-b)/c >0? 1. a>b, b<c 2. a<b, b<c

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Creeper300

07 Nov 2010, 13:44

3

2

3,493

by: metallicafan

03 Feb 2012, 11:39

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If X^3 = Y, is Y a fraction? (1) X^2 is a fraction. (2) X

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saurya_s

05 Aug 2004, 03:11

3

7,765

by: Bunuel

19 Jan 2012, 04:45

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d=83,521,y73/441,682,36y. In the expression above

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enigma123

09 Jan 2012, 22:05

14

4

12,486

by: omerrauf

17 Jan 2012, 08:44

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Is |x-2|+|x+2|<4?

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IanStewart

09 Jan 2012, 23:38

2

4

3,301

by: mydreammba

13 Jan 2012, 21:45

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In the figure above, what is the ratio of the area of triangle ABC to

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SonyGmat

08 Jan 2012, 04:59

2

9

9,124

by: SonyGmat

09 Jan 2012, 14:45

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Is it true that exactly two of the three sentences I, II,

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nonameee

02 Nov 2011, 07:26

1

5

2,657

by: nonameee

03 Nov 2011, 04:46

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

Sub 505 (Easy) | Statistics and Sets Problems

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nonameee

13 May 2024, 01:09

3

2,701

by: fluke

05 Oct 2011, 04:56

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If x is positive is x divisible by 2 ? (1) x^3+x is

805+ (Hard) | Algebra, Number Properties

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anaik100

22 Mar 2010, 11:56

14

9

11,168

by: gmatopoeia

07 Sep 2011, 02:59

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

655-705 (Hard) | Coordinate Plane

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DeeptiM

28 Aug 2011, 12:33

4

2

3,156

by: fluke

28 Aug 2011, 13:15

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If x and y are integers, is |x| > |y|? 1) |x| = |y+1| 2)

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bibha

05 May 2010, 07:28

2

19

6,543

by: gmatmachoman

26 Aug 2011, 12:32