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

78,674

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

188,494

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

487,886

by: bb

29 Aug 2025, 13:27

ER

If n is an even integer less than 24, is x an odd integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

12 Apr 2016, 02:25

4

2,358

by: Pretz

08 Sep 2016, 02:56

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What is the value of y?

Sub 505 (Easy) | Algebra

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Bunuel

28 Aug 2016, 10:55

6

1,838

by: Balajikarthick1990

30 Aug 2016, 22:57

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

2,210

by: Manonamission

12 Aug 2016, 10:33

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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

2,908

by: Bunuel

01 Aug 2016, 09:58

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

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

1,696

by: rohit8865

30 Jul 2016, 05:53

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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

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

1,893

by: Chakolate

26 Jul 2016, 15:07

ER

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

1,688

by: jasimuddin

18 Jul 2016, 21:49

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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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x equals to y% of what number? (1) x = 3y (2) 6y + 2x = 56x/14

555-605 (Medium) | Percent and Interest Problems

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

craky

27 Jan 2011, 02:38

5

5,169

by: Nightfury14

24 Jun 2016, 11:44

ER

What is the value of P?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

23 Jun 2016, 02:13

5

2,467

by: Nightfury14

23 Jun 2016, 03:54

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If P is an integer, is

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VenoMfTw

20 Jun 2016, 04:05

3

1,499

by: chetan2u

20 Jun 2016, 07:41

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2 circles have the same center and the smaller circle’s radius r is 5.

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

MathRevolution

29 May 2016, 20:54

3

4,625

by: MathRevolution

01 Jun 2016, 06:38

ER

Is r not equal to s?

555-605 (Medium) | Inequalities, Number Properties

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

Bunuel

30 May 2016, 13:55

3

2,179

by: CounterSniper

31 May 2016, 00:43

ER

# is one operation of addition, subtraction, multiplication, or divisi

Sub 505 (Easy) | Functions and Custom Characters

Sub 505 (Easy) | Functions and Custom Characters hide tags

MathRevolution

17 May 2016, 16:17

2

2,181

by: Abhishek009

22 May 2016, 02:06

ER

If x and y are both positive integers, how much greater is x than y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

19 May 2016, 03:26

2

10,804

by: shwetagoyal121

19 May 2016, 05:19

ER

Is x < y?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Lolaergasheva

16 May 2016, 19:34

5

3,013

by: pvikas

16 May 2016, 19:28

ER

If S is a set of consecutive integers, what is the sum of th

Sub 505 (Easy) | Statistics and Sets Problems

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

jlgdr

20 Sep 2013, 17:09

3

5,379

by: lalania1

26 Apr 2016, 19:35

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

4,103

by: Icecream87

26 Apr 2016, 05:02

ER

If a and b are integers and ab ≠ 0, what is the units digit of ab?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

21 Apr 2016, 00:44

5

2,143

by: MathRevolution

25 Apr 2016, 06:28

ER

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

2,457

by: y4nkee

21 Apr 2016, 00:12

ER

If s=t^2, where t is a positive integer, what is the value of s?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

19 Apr 2016, 03:06

2

2,777

by: y4nkee

20 Apr 2016, 23:37

ER

Is positive integer z an odd integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

13 Apr 2016, 06:09

4

2,444

by: stonecold

15 Apr 2016, 05:07

ER

If the average (arithmetic mean) of 9 numbers is 325, what is the medi

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

MathRevolution

16 Mar 2016, 18:27

2

2,170

by: MathRevolution

19 Mar 2016, 23:05

ER

n is a positive number; z – 15 is also a positive number; is z/n less

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

16 Mar 2016, 11:33

3

1,701

by: nipunjain14

17 Mar 2016, 22:55

ER

If A and B are integers, is B > A?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

16 Mar 2016, 11:12

3

1,690

by: nipunjain14

17 Mar 2016, 19:23

ER

Is rs = rx − 2 ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Asifpirlo

21 Aug 2013, 17:51

3

4,239

by: mvictor

17 Mar 2016, 18:44

ER

If n ≠ 1, is (2xn - 2x)/(n-1) > y ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

macjas

27 May 2012, 09:35

4

4,591

by: stonecold

13 Mar 2016, 09:07

ER

What is the area of the circle?

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Mesto

23 Feb 2016, 00:08

2

2,005

by: MathRevolution

21 Feb 2016, 23:02

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Is xy < 10? (1) x < 5 and y < 2 (2) x < −3 and y < −1

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

14 Feb 2016, 04:13

2

2,345

by: MathRevolution

14 Feb 2016, 23:51

ER

If j and k are integers, is j + k an odd integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

02 Dec 2015, 06:53

3

2,854

by: fabricioka

12 Jan 2016, 16:17

ER

In the figure above, if lines l and m are parallel, what is the value

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

27 Dec 2015, 10:32

2

10,282

by: TeamGMATIFY

29 Dec 2015, 04:06

ER

If the numbers l and m are both greater than 0, is l/m an integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

06 Dec 2015, 12:07

4

1,891

by: MathRevolution

10 Dec 2015, 01:24

ER

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

2,776

by: mango aadmi

02 Dec 2015, 07:51

ER

If a and b are integers, is a + 8b even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

12 Oct 2015, 22:31

8

3,278

by: IcyTropic

14 Oct 2015, 15:43

ER

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

2,271

by: TheKingInTheNorth

28 Aug 2015, 07:13

ER

If a and b are positive, a% of what number is equal to b% of a?

555-605 (Medium) | Percent and Interest Problems

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

petu

19 Apr 2015, 11:39

2

3,094

by: EMPOWERgmatRichC

19 Apr 2015, 12:40

ER

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

555-605 (Medium) | Percent and Interest Problems

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

gmatmania17

29 Dec 2014, 05:28

7

3,835

by: EMPOWERgmatRichC

30 Dec 2014, 21:01

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

3,518

by: Maxirosario2012

29 Nov 2014, 17:16

ER

What is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sanjoo

15 Feb 2014, 02:52

4

3,111

by: taransambi

14 Aug 2014, 06:36

ER

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

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

abilash10

12 Aug 2014, 04:46

7

3,153

by: Bunuel

12 Aug 2014, 04:47

ER

Is x > 0 ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

DelGiudice99

09 Jul 2014, 08:46

2

3,599

by: australia123

10 Jul 2014, 00:44

ER

Is x^3 greater than x

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krishna789

11 Jun 2014, 21:30

2

4,075

by: krishna789

12 Jun 2014, 00:38

ER

What is the value of x ?

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cssk

05 Jan 2014, 10:35

3

2,797

by: cssk

05 Jan 2014, 10:55

ER

What is the value of b ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

avohden

22 Oct 2013, 22:00

5

3,063

by: Bunuel

01 Dec 2013, 07:21

ER

While on a summer vacation in Hawaii, Carla goes for an ocea

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Smita04

10 Jul 2012, 20:16

4

3,717

by: jlgdr

12 Oct 2013, 10:32

ER

The figure above shows the shape of a brick patio. If arc AB

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Asifpirlo

22 Aug 2013, 02:28

3

3,133

by: fameatop

22 Aug 2013, 03:16

ER

A CEO is building an extra-wide garage in which to park his

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Asifpirlo

21 Aug 2013, 17:56

2

3,611

by: fameatop

22 Aug 2013, 03:10

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

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innocous

25 Jul 2013, 07:25

4

2,323

by: Observer

25 Jul 2013, 12:40