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

79,725

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

858

24

188,978

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

488,677

by: bb

29 Aug 2025, 13:27

ER

List L consists of the positive integers

555-605 (Medium) | Statistics and Sets Problems

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

TheGmatTutor

13 Jul 2015, 10:51

5

2

2,720

by: GMATinsight

13 Jul 2015, 12:18

ER

What is the value of x? (1) 3x + 15y = 35 (2) 70 − 6x = 30y

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

09 Sep 2015, 00:48

5

7

3,685

by: Bunuel

14 Sep 2015, 06:55

ER

Is xy < 8? (1) x < 2 and y < 4 (2) 0 < x < 1/2 and y^2 < 225

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

06 Oct 2015, 06:03

5

6

6,000

by: Bunuel

11 Oct 2015, 06:51

ER

A worker’s account activities consist of three types of

655-705 (Hard) | Algebra, Word Problems

655-705 (Hard) | Algebra, Word Problems hide tags

gmatbull

01 Nov 2012, 09:15

5

10

3,985

by: MathRevolution

12 Oct 2015, 11:13

ER

A recipe calls for 2/3 cup of butter to make a batch of cook

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

aja1991

12 Mar 2014, 02:56

5

2

5,768

by: prashant212

08 Apr 2016, 12:47

ER

What is the average of numbers a and b?

555-605 (Medium) | Statistics and Sets Problems

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

AVINASH77

21 Apr 2016, 13:09

5

3

2,229

by: MathRevolution

25 Apr 2016, 06:22

ER

If x > 1, what is the value of x?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

melguy

02 Jun 2011, 18:35

5

6

3,592

by: Bunuel

19 Jun 2016, 09:47

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

15,113

by: bumpbot

27 Jun 2016, 10:55

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

2,596

by: Bunuel

01 Aug 2016, 02:00

ER

If a>b, is a>c? 1) a/b > c/b 2) 5ab > 6bc

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

EBITDA

25 May 2016, 07:47

5

4

2,341

by: mvictor

18 Oct 2016, 07:59

ER

If y is a positive integer with 3 digits and the sum of its digits is

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

06 Dec 2016, 00:45

5

2,082

by: pranab223

07 Dec 2016, 08:39

ER

What is the average (arithmetic mean) of A, B, and 4C?

505-555 (Easy) | Statistics and Sets Problems

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

prateekbhatt

20 Sep 2013, 06:53

5

4

4,168

by: stonecold

21 Dec 2016, 18:08

ER

In a work force, the employees are either managers or directors. What

605-655 (Medium) | Statistics and Sets Problems

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

GMATnavigator

17 Aug 2015, 01:39

5

2

7,092

by: nahid007

16 Jan 2017, 22:44

ER

If y = −1/2, is 2x/y > 1?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

08 Feb 2017, 01:48

5

2,398

by: JeffTargetTestPrep

13 Feb 2017, 08:43

ER

Is integer x prime? (1) x = | x | (2) x! = | x |

555-605 (Medium) | Absolute Values, Algebra

555-605 (Medium) | Absolute Values, Algebra hide tags

Bunuel

10 Dec 2016, 06:33

5

2,794

by: KrishnakumarKA1

23 Feb 2017, 06:58

ER

If a ≠ 0, does xa = a ?

555-605 (Medium) | Algebra, Number Properties

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

Bunuel

24 Aug 2015, 23:51

5

7

3,077

by: bumpbot

16 Mar 2017, 19:34

ER

How many of the three heights of triangle ABC do not pass inside the

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

30 Mar 2017, 08:18

5

1,578

by: Kurtosis

03 Apr 2017, 23:32

ER

If r is a prime number and s is a positive integer, is

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

naumyuk

20 Jan 2016, 04:52

5

4

2,388

by: Bunuel

10 Apr 2017, 05:10

ER

How many distinct Prime Factors does a^b^c has 1) a^b has three disti

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

GMATinsight

30 May 2017, 05:41

5

3

2,557

by: Bunuel

31 May 2017, 01:32

ER

Is y > 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

24 Jun 2017, 00:13

5

7

3,030

by: ydmuley

26 Jun 2017, 00:23

ER

P is a set of integers. If a is the average of the odd integers and b

555-605 (Medium) | Absolute Values, Number Properties

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

Bunuel

03 Jul 2017, 05:02

5

4

2,342

by: chetan2u

04 Jul 2017, 10:46

ER

What is the value of x? (1) |y| ≤ −3x (2) |5x − 1| = x + 7

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

24 Jul 2017, 23:22

5

9

2,548

by: mehrotrayashraj

29 Jul 2017, 07:13

ER

If b is an even integer is b < 0?

705-805 (Hard) | Algebra, Inequalities

705-805 (Hard) | Algebra, Inequalities hide tags

audiogal101

23 Nov 2013, 11:31

5

7

3,141

by: bumpbot

01 Aug 2017, 07:59

ER

a and b are integers such that a*b # 0. Is |a|/|b| = a/b?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

joylive

24 Nov 2012, 08:56

5

3

2,953

by: Bunuel

14 Aug 2017, 01:02

ER

Is a 3-digit integer divisible by 3?

505-555 (Easy) | Multiples and Factors, Number Properties

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

amijags

10 Aug 2010, 05:48

5

4

3,973

by: bumpbot

14 Aug 2017, 03:07

ER

Is x = 5?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Aug 2017, 06:18

5

4

2,697

by: antztheman

26 Aug 2017, 03:35

ER

If a and b are positive integers, is 3a^2*b divisible by 60?

555-605 (Medium) | Multiples and Factors

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

Bunuel

20 Dec 2015, 06:00

5

4

4,445

by: septwibowo

05 Sep 2017, 07:59

ER

Is x+y<180?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

MathRevolution

25 May 2016, 18:35

5

4

2,919

by: bumpbot

07 Sep 2017, 03:40

ER

If K = (1/(3a) + 1/b)/(5/(ab)) and ab ≠ 0, what is the value of K ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Jun 2015, 02:53

5

3

3,935

by: Nunuboy1994

10 Sep 2017, 13:31

ER

Is p^2 > q^4 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Sep 2017, 00:02

5

2

1,950

by: niks18

13 Sep 2017, 10:59

ER

What is the value of a^4 – b^4 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

03 Sep 2017, 06:25

5

4

2,087

by: sasyaharry

24 Sep 2017, 11:08

ER

Five students took an exam. The average grade on the exam was 80. What

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

31 Oct 2017, 23:06

5

2

3,613

by: GMATisLovE

02 Nov 2017, 00:34

ER

If x>y and y is a positive integer, is y even?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

chetan2u

14 Nov 2017, 07:46

5

2

1,428

by: akshayk

14 Nov 2017, 08:37

ER

If the Perimeter of Quadrilateral ABCD is P then find P? 1) The maxim

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

18 Nov 2017, 05:33

5

2

2,532

by: amanvermagmat

27 Nov 2017, 23:34

ER

If k is an integer, what is the value of k?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Mar 2015, 04:44

5

10

4,849

by: niks18

25 Dec 2017, 09:28

ER

If Φ is a digit in the number n and n = 3.Φ6, what is Φ?

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

01 Nov 2016, 04:49

5

2

5,339

by: BrentGMATPrepNow

10 Jan 2018, 09:13

ER

What is the 999th term of the series S ? (1) The first four terms of S

605-655 (Medium) | Algebra, Sequences

605-655 (Medium) | Algebra, Sequences hide tags

Sajjad1994

06 Jan 2018, 14:22

5

6

5,869

by: NiruSinghal

16 Jan 2018, 23:28

ER

Of the 70 children who visited a certain doctor last week,

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

aiming4mba

17 Aug 2010, 09:57

5

6

3,776

by: bumpbot

22 Jan 2018, 04:58

ER

Is the tens digit of a two digit integer k divisible by 3?

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

ananthpatri

06 Aug 2012, 00:21

5

6

6,774

by: bumpbot

24 Jan 2018, 23:28

ER

If x and y are different prime numbers, is (50-x)/y an integer?

705-805 (Hard) | Algebra +2 tags

705-805 (Hard) | Algebra, Fractions and Ratios, Number Properties hide tags

chetan2u

04 Feb 2018, 09:45

5

3

1,763

by: hero_with_1000_faces

14 Feb 2018, 07:40

ER

If a < b < c < d, is abcd > 0? (1) abc > 0 (2) bcd < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

29 Dec 2016, 11:56

5

6

3,568

by: bumpbot

27 Feb 2018, 09:55

ER

If l and w represent the length and width, respectively, of the rectan

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

GMATinsight

09 Sep 2015, 11:35

5

4

3,432

by: BillNella89

01 Mar 2018, 05:31

ER

Is m divisible by n?

555-605 (Medium) | Multiples and Factors

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

Bunuel

22 Dec 2016, 02:31

5

4

5,645

by: EgmatQuantExpert

26 Mar 2018, 10:49

ER

What is the value of x? (1) 3^x*4^x = 144 (2) (10^x)^x = 10,000

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

Bunuel

03 Apr 2018, 21:45

5

3

1,786

by: US09

05 Apr 2018, 09:14

What is the remainder when X is divided by Y?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

03 May 2018, 07:49

5

6

3,650

by: amanvermagmat

03 May 2018, 22:38

ER

Given that a>1 and b>1. Is (a^x)(b^y)<1? (1) a^(x+y) < 1 (2) b^(x+y

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

Bunuel

16 May 2018, 06:49

5

3

1,668

by: Shobhit7

17 May 2018, 12:29

ER

The average (arithmetic mean) of n integers is what percent of the sum

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

20 May 2018, 14:08

5

2

2,112

by: Xiuxiuxiu

28 May 2018, 02:57

ER

If a^x*b^y = 200, where a, b, x, y are positive integers, x + y = ?

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

Bunuel

14 Jun 2018, 21:13

5

6

2,189

by: Bob2018

15 Jun 2018, 09:42

ER

Is |r|*s = |s|*r?

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

chetan2u

28 Jun 2018, 21:17

5

3

2,727

by: GyMrAT

28 Jun 2018, 22:02

ER

Can n/196 be an integer?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Newman2019

03 Jul 2018, 11:26

5

3

1,702

by: Bunuel

03 Jul 2018, 23:07