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

176

15

78,623

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,460

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

487,842

by: bb

29 Aug 2025, 13:27

ER

If a and b are integers, what is the value of a + b ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

26 May 2016, 11:37

2

5

2,982

by: rhine29388

27 Jun 2016, 06:07

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

If Tom invest $x April at a constant monthly interest rate of y percen

555-605 (Medium) | Percent and Interest Problems

555-605 (Medium) | Percent and Interest Problems hide tags

MathRevolution

26 Jun 2016, 18:29

1

3

2,273

by: Divyadisha

29 Jun 2016, 13:55

ER

Tom was born on October 28th. On what day of the week was he born?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Mar 2016, 11:36

1

5

2,821

by: rhine29388

01 Jul 2016, 03:11

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What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

08 Jul 2016, 07:56

1

6

3,602

by: hsbinfy

09 Jul 2016, 06:45

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Is abc = 2?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Nov 2014, 09:40

6

5

4,356

by: manojach87

12 Jul 2016, 18:35

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What is the value of a^2 - 2a + b^2?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

EBITDA

12 Jul 2016, 09:26

2

15

2,255

by: HARRY113

12 Jul 2016, 21:14

If a number is drawn at random from the first 1000 positive

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GMATT73

23 Nov 2005, 07:19

75

14

26,641

by: Nevernevergiveup

12 Jul 2016, 22:53

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What is the value of (a+b)?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

08 Jul 2016, 07:55

3

5

2,390

by: Bunuel

16 Jul 2016, 11:54

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If x^2 = y^2, what is the value of x-y?

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EBITDA

12 Jul 2016, 01:40

7

4

5,437

by: Bunuel

16 Jul 2016, 14:52

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What is the median of the series S_1, S_2, S_3,, S_n where

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EBITDA

16 Jul 2016, 05:39

3

5

2,489

by: pallaviisinha

17 Jul 2016, 09:06

ER

How many degrees is angle e?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Jan 2016, 12:20

1

3

2,913

by: ravi2107

17 Jul 2016, 11:41

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Is a/b >0? (1) ab > 0 (2) b/a > 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Creeper300

07 Nov 2010, 13:40

3

2

4,137

by: LogicGuru1

18 Jul 2016, 04:13

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If X and Y are positive integers, what is the ratio between Y and X?

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

18 Jul 2016, 08:09

2

2,198

by: BrentGMATPrepNow

18 Jul 2016, 08:32

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If X and Y are positive integers, is X greater than Y?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

18 Jul 2016, 08:26

2

1,687

by: jasimuddin

18 Jul 2016, 21:49

ER

A circle and a straight line are drawn on the same coordinate graph.

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

27 Aug 2022, 03:19

4

8

3,358

by: LogicGuru1

19 Jul 2016, 10:56

ER

Is N divisible by 24?

505-555 (Easy) | Multiples and Factors

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

stonecold

20 Jul 2016, 09:36

2

2,131

by: abhimahna

20 Jul 2016, 11:10

ER

What is the value of (X^2 + Y^2)?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

18 Jul 2016, 08:12

2

1,891

by: Chakolate

26 Jul 2016, 15:07

ER

What is the value of n?

505-555 (Easy) | Algebra, Inequalities

505-555 (Easy) | Algebra, Inequalities hide tags

Bunuel

26 Jul 2016, 10:00

3

2,845

by: Skywalker18

26 Jul 2016, 20:00

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Is K an integer? (1) K=P/Q, where P and Q are consequtive

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stolyar

15 May 2003, 05:09

1

10

5,048

by: bumpbot

28 Jul 2016, 19:45

ER

How much water (in grams) should be added to a 35%-solution of acid to

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

abhi758

17 Aug 2009, 08:09

37

7

21,226

by: Bunuel

30 Jul 2016, 02:33

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If P and Q are both positive, what is the value of P?

555-605 (Medium) | Percent and Interest Problems

555-605 (Medium) | Percent and Interest Problems hide tags

Bunuel

30 Jul 2016, 03:06

2

3,492

by: shashank1tripathi

30 Jul 2016, 05:09

ER

A hexagonal playing field is composed of six equilateral triangles, ea

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

22 Jan 2016, 10:26

2

1,695

by: rohit8865

30 Jul 2016, 05:53

ER

If X and Y are both integers different from zero, what is the value of

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

20 Jul 2016, 11:42

6

1,969

by: shravan2025

30 Jul 2016, 09:13

ER

If n is a positive integer, what is the value of n?

555-605 (Medium) | Multiples and Factors

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

EBITDA

31 Jul 2016, 08:23

2

9

2,804

by: Bunuel

01 Aug 2016, 00:17

ER

If a / b > 2, is 3a + 2b < 18?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

EBITDA

31 Jul 2016, 10:48

5

6

2,571

by: Bunuel

01 Aug 2016, 02:00

ER

John, Paul and Linda drove on a 1,500 mile trip. If they shared the...

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

EBITDA

01 Aug 2016, 09:53

1

2,906

by: Bunuel

01 Aug 2016, 09:58

ER

Is -3x^3 < -3?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

21 Jan 2015, 03:03

4

6

3,253

by: DAllison2016

04 Aug 2016, 12:25

ER

What is the ratio of 2a to b?

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

11 Aug 2016, 06:56

1

2

3,809

by: AbdurRakib

11 Aug 2016, 13:34

ER

What is the value of f^2 – g^2?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

12 Aug 2016, 08:47

2

2,208

by: Manonamission

12 Aug 2016, 10:33

ER

If y≠0 and y≠-1, is x/y > x/(y+1)?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

jimmylow

14 Aug 2016, 06:14

3

5

3,452

by: Bunuel

14 Aug 2016, 06:15

ER

What is the value of 12/5^p?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

14 Aug 2016, 07:13

1

3

2,053

by: MarkusKarl

14 Aug 2016, 15:38

ER

Daniel rides to school each day on a path that takes him first to a

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

01 Jul 2016, 04:22

2

4

2,313

by: Bunuel

18 Aug 2016, 10:30

ER

Is 0 > ab?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

30 Dec 2014, 07:44

11

3,543

by: HKD1710

21 Aug 2016, 06:16

ER

If A is a prime number, what is the value of A?

655-705 (Hard) | Multiples and Factors, Number Properties

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

Bunuel

18 Jul 2016, 08:16

3

10

2,654

by: stonecold

21 Aug 2016, 08:57

ER

A certain packing box contains books between 50 to 60. How many books

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

quantman3

10 Nov 2011, 20:09

3

6

4,246

by: Bunuel

22 Aug 2016, 01:09

ER

In the xy plane, is the point (4, −2) on the line l?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

21 Aug 2016, 04:16

2

6

3,881

by: Balajikarthick1990

22 Aug 2016, 04:40

ER

Is c equal to the median of the 3 positive integers a, b, c

555-605 (Medium) | Statistics and Sets Problems

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

rxs0005

14 Jan 2011, 16:25

3

8

4,682

by: bumpbot

23 Aug 2016, 04:06

ER

If q + r + s = 45, what is the value of qr?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

23 Aug 2016, 02:36

2

3

2,803

by: DAllison2016

23 Aug 2016, 13:32

ER

What is the median of 15 integers?

555-605 (Medium) | Statistics and Sets Problems

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

stunn3r

25 Jun 2013, 05:30

4

12

7,379

by: bumpbot

24 Aug 2016, 00:56

A and B are two integers. Is A-7B Even?

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

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

stonecold

03 Aug 2016, 04:57

1

3

2,229

by: stonecold

24 Aug 2016, 02:16

ER

Is integer x divisible by 48?

505-555 (Easy) | Multiples and Factors

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

Bunuel

24 Aug 2016, 05:54

1

3

3,013

by: paidlukkha

24 Aug 2016, 07:14

ER

Is 3 < sqrt of x < 5 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

sara86

25 Dec 2015, 08:10

3

4

2,456

by: maliyeci

25 Aug 2016, 02:10

ER

A transportation token is originally a circle. When collecte

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

fozzzy

23 Jun 2013, 02:59

3

4

2,545

by: bumpbot

26 Aug 2016, 07:52

In the figure, what is the value of y

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

metallicafan

06 Jul 2012, 10:12

2

5

4,426

by: bumpbot

26 Aug 2016, 08:06

ER

The area of parallelogram QRST is what percent of the area o

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

sanjoo

27 Aug 2016, 01:49

3

4

6,124

by: bumpbot

26 Aug 2016, 08:13

ER

Is |x| < 1 ?

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gmatgambler

06 Jan 2014, 03:12

9

5

4,311

by: Bunuel

30 Aug 2016, 10:18

ER

What is the value of y?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

28 Aug 2016, 10:55

6

1,837

by: Balajikarthick1990

30 Aug 2016, 22:57

ER

If n is an integer, and n ≠ 0, is (100 + n^2)/n a positive integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

01 Sep 2016, 03:53

1

2

2,416

by: Balajikarthick1990

01 Sep 2016, 22:55

ER

In triangle ABC above, if ∠BAD and ∠ADB have measures of 2n°, and if

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

29 Aug 2016, 03:59

4

3

2,605

by: rohit8865

05 Sep 2016, 20:50