GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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

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Bunuel

25 Oct 2022, 08:11

189

15

89,122

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of June 2026

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1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,287

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

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bb

23 Aug 2026, 13:03

1.6k

1

496,291

by: bb

23 Aug 2026, 13:01

ER

If x > 0, is √x > x ?

555-605 (Medium) | Inequalities

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Bunuel

16 Feb 2015, 06:48

8

5

4,331

by: EMPOWERgmatRichC

22 Feb 2015, 23:43

ER

In the rectangular coordinate system above, if OB < BC then is the are

705-805 (Hard) | Coordinate Plane

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TARGET730

09 Feb 2015, 03:34

9

7

4,275

by: chetan2u

16 Feb 2015, 18:58

ER

When 200 laboratory rats were given an experimental medicine

555-605 (Medium) | Overlapping Sets

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rxs0005

12 Feb 2012, 10:33

2

10

3,595

by: shriramvelamuri

29 Jan 2015, 13:19

ER

Is f(x) > 0?

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

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Bunuel

21 Jan 2015, 02:50

14

9

5,205

by: Bunuel

26 Jan 2015, 05:56

ER

If x and y are positive, does (x-2)(y-3)=6?

655-705 (Hard) | Algebra

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Bunuel

19 Jan 2015, 05:46

4

3,480

by: Bunuel

26 Jan 2015, 05:28

ER

What is the number of 360-degree rotations that Tashi’s unicycle wheel

505-555 (Easy) | Geometry

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Bunuel

12 Jan 2015, 11:15

1

3

2,575

by: Bunuel

19 Jan 2015, 03:43

ER

What is the measure of ∠ABX in the following figure?

505-555 (Easy) | Geometry

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Bunuel

11 Jan 2015, 12:21

2

2,966

by: Bunuel

19 Jan 2015, 03:32

ER

Does the area of a certain square greater than the area of a certain

555-605 (Medium) | Geometry

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Bunuel

26 Dec 2014, 08:49

3

5

3,728

by: CCMBA

09 Jan 2015, 20:49

ER

Last season, the Rally Cats won 40 percent of the first 45 games they

505-555 (Easy) | Word Problems

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Bunuel

03 May 2026, 12:13

5

6

3,342

by: Bunuel

09 Jan 2015, 06:14

ER

José deposited a total of $ 10,000 into two interest-bearing accounts

555-605 (Medium) | Percent and Interest Problems

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gmatmania17

29 Dec 2014, 05:28

7

3,955

by: EMPOWERgmatRichC

30 Dec 2014, 21:01

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

Sub 505 (Easy) | Word Problems

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Bunuel

22 Dec 2014, 09:20

3

3,889

by: g106

23 Dec 2014, 11:33

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

Sub 505 (Easy) | Word Problems

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Bunuel

22 Dec 2014, 09:24

4

8,521

by: g106

23 Dec 2014, 09:42

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

Sub 505 (Easy) | Geometry

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Bunuel

17 Dec 2014, 07:48

4

6,176

by: beattheheat

20 Dec 2014, 10:48

ER

If x is a positive integer, is x divisible by 15?

705-805 (Hard) | Multiples and Factors

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CMcAboy

03 Apr 2011, 18:50

8

13

8,307

by: santorasantu

05 Dec 2014, 12:04

ER

If x + y is an integer, is y an integer?

655-705 (Hard) | Number Properties

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sset009

26 Jul 2008, 10:30

9

3

3,897

by: Bunuel

05 Dec 2014, 04:22

ER

What is the ratio of y to x?

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SirGMAT

02 Dec 2014, 08:21

15

6

7,161

by: Bunuel

02 Dec 2014, 08:21

ER

If the square root of t is a real number, is the square root

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Rock750

09 Apr 2013, 16:32

3

3,591

by: Maxirosario2012

29 Nov 2014, 17:16

ER

What is the value of x^2 + y^2 ?

555-605 (Medium) | Algebra

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krazo

24 Nov 2014, 01:45

2

6

4,387

by: Bunuel

24 Nov 2014, 01:45

ER

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

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punyadeep

16 Mar 2011, 07:49

31

15

15,033

by: bumpbot

19 Nov 2014, 11:32

ER

What is the value of x + y?

555-605 (Medium) | Algebra

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Bunuel

14 Nov 2014, 09:51

3

4

3,775

by: Bunuel

17 Nov 2014, 12:15

ER

What is the increasing percent of the price of the company's stocks

555-605 (Medium) | Fractions and Ratios

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h31337u

09 Nov 2014, 07:52

2

3

3,218

by: Bunuel

10 Nov 2014, 02:29

ER

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

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ctrlaltdel

14 Nov 2009, 18:56

35

13

16,198

by: deeuk

10 Nov 2014, 01:27

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

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smartyman

02 Jul 2014, 01:03

2

5,178

by: dmmk

04 Nov 2014, 08:34

ER

The new recruits of a military organization who score in the bottom 16

705-805 (Hard) | Statistics and Sets Problems

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Hedwig

05 Oct 2014, 05:01

6

2

6,195

by: Hedwig

05 Oct 2014, 06:25

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

4,177

by: DangerPenguin

29 Sep 2014, 07:37

ER

Is integer y is divisible by 24?

505-555 (Easy) | Multiples and Factors

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

Gnpth

24 Jul 2014, 07:54

10

3

6,634

by: kalaits

26 Sep 2014, 14:04

ER

Is quadrilateral ABCD a rectangle? (1) Line segments AC and

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

jamesrwrightiii

28 Aug 2007, 21:19

5

6

4,500

by: Bunuel

24 Sep 2014, 12:54

ER

S is an infinite sequence, in which the value of a

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gmatprep2011

23 Sep 2011, 23:23

18

9

5,946

by: Bunuel

21 Sep 2014, 11:41

ER

If r and s are positive integers, can the fraction r/s be expressed as

555-605 (Medium) | Number Properties

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joemama142000

19 Sep 2014, 07:26

8

10

6,152

by: Bunuel

19 Sep 2014, 07:27

ER

A cafe has a lunch special with a base price of $5.00.

705-805 (Hard) | Word Problems

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BukrsGmat

09 Aug 2012, 23:30

11

3

4,975

by: dd29

15 Sep 2014, 03:40

ER

What is the greatest common divisor of a + b and 4?

505-555 (Easy) | Multiples and Factors

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Maksym

29 Jun 2014, 08:53

7

2

3,609

by: GSBae

09 Sep 2014, 06:55

ER

What is the sum of the digits of the positive integer n

555-605 (Medium) | Number Properties

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judokan

05 Sep 2014, 22:01

33

5

24,321

by: Bunuel

05 Sep 2014, 22:02

ER

Are p, q and r all positive?

Sub 505 (Easy) | Number Properties

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pran21

02 Sep 2014, 03:40

1

2,402

by: Bunuel

02 Sep 2014, 03:44

ER

If the Sequence S has 100 terms what is the 83rd term

555-605 (Medium) | Sequences

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rxs0005

30 Sep 2010, 15:07

21

4

8,336

by: GSBae

27 Aug 2014, 07:02

ER

What is the value of x^6 + x^(-6) ?

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alphonsa

18 Aug 2014, 09:21

3

2

2,645

by: Bunuel

18 Aug 2014, 09:31

ER

If Q is a set of consecutive integers, what is the standard

605-655 (Medium) | Statistics and Sets Problems

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hogann

15 Aug 2014, 09:08

156

7

44,829

by: Bunuel

15 Aug 2014, 09:09

ER

What is the value of x?

555-605 (Medium) | Algebra

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sanjoo

15 Feb 2014, 02:52

4

3,207

by: taransambi

14 Aug 2014, 06:36

ER

If W is divisible by 7, is Z even or odd?

505-555 (Easy) | Number Properties

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abilash10

12 Aug 2014, 04:46

7

3,224

by: Bunuel

12 Aug 2014, 04:47

ER

The cost of delivery for an order of desk chairs was $10.00

555-605 (Medium) | Word Problems

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ruturajp

31 Jul 2014, 02:48

14

4

6,505

by: Bunuel

31 Jul 2014, 02:49

ER

If f and g are both positive integers greater than 1

555-605 (Medium) | Exponents

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Gnpth

25 Jul 2014, 11:07

1

3

7,574

by: Bunuel

26 Jul 2014, 02:05

ER

Seven different numbers are selected from the integers 1 to

605-655 (Medium) | Remainders

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aurobindo

22 Jul 2014, 14:34

27

5

16,571

by: Bunuel

22 Jul 2014, 14:35

ER

If a, b, and c are positive and a =b/c^1/2, what is the

Sub 505 (Easy) | Algebra

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Gnpth

22 Jul 2014, 03:10

1

2

2,762

by: Bunuel

22 Jul 2014, 03:13

ER

Is the probability of an element in Set B also being an elem

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tabsang

28 Dec 2012, 07:18

6

4

3,173

by: Bunuel

17 Jul 2014, 08:58

ER

If n is not equal to 0, is |n| < 4 ?

605-655 (Medium) | Absolute Values, Inequalities

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lbsgmat

17 Jul 2014, 01:30

38

17

22,550

by: Bunuel

17 Jul 2014, 01:30

ER

If AD is 6, and ADC is a right angle, what is the area of

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

MackyCee

10 Jul 2014, 04:07

5

9

7,139

by: Bunuel

10 Jul 2014, 04:10

ER

Is x > 0 ?

505-555 (Easy) | Inequalities

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DelGiudice99

09 Jul 2014, 08:46

2

3,670

by: australia123

10 Jul 2014, 00:44

ER

A, B, C, and D are distinct points on a plane. If triangle A

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

IrinaOK

04 Jul 2014, 05:50

7

13

5,347

by: Bunuel

04 Jul 2014, 05:52

ER

Barry leaves for the studio

705-805 (Hard) | Distance and Speed Problems

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gaurav245

02 Jul 2014, 04:49

4

5

3,313

by: Bunuel

02 Jul 2014, 05:07

ER

If x and y are non-zero integers, is x = y ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

iaratul

01 Jul 2014, 04:06

9

4

3,176

by: iaratul

01 Jul 2014, 06:43

ER

What is area of square LMNO ?

Sub 505 (Easy) | Geometry

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Gnpth

23 Jun 2014, 05:33

4

2

7,339

by: Bunuel

23 Jun 2014, 05:41