GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

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

Bunuel

25 Oct 2022, 08:11

179

15

79,104

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,742

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,314

by: bb

29 Aug 2025, 13:27

ER

A positive integer N is a six digit number of the form

655-705 (Hard) | Number Properties, Word Problems

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

amanvermagmat

08 Aug 2018, 22:43

8

6

2,052

by: amanvermagmat

16 Aug 2018, 10:42

ER

What percent of a group of numbers are integers greater than 70?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

14 Aug 2019, 00:52

5

3

2,052

by: Bunuel

10 Sep 2019, 00:45

ER

What the area of the equilateral triangle inscribed in circle C? 1) A

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

GMATinsight

31 Mar 2021, 01:33

4

3

2,052

by: SiddharthR

31 Aug 2021, 11:02

ER

In the sequence d_1, d_2, d_3, . . ., for all positive integers n, d_

705-805 (Hard) | Inequalities, Sequences

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

Russ19

11 May 2021, 10:04

7

4

2,052

by: chetan2u

27 Nov 2021, 20:40

ER

Is x ≤ 3? (1) 6x ≤ 24 (2) 3x + 1 ≥ 12

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

23 Feb 2022, 08:30

1

2

2,052

by: nasgmatbag

19 Sep 2023, 01:57

ER

What is the length of segment AB? (1) Segment CD intersects segment

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

29 Aug 2018, 02:11

2

2,051

by: sumit411

29 Aug 2018, 03:10

ER

The variables B and C are functions of the value of A such that with

805+ (Hard) | Functions and Custom Characters, Word Problems

805+ (Hard) | Functions and Custom Characters, Word Problems hide tags

Bunuel

25 Nov 2019, 02:36

8

3

2,051

by: mohagar

28 Jan 2020, 22:16

ER

If k is an even integer, what is the remainder when k is divided by 10

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Deepaakrishnan

21 Mar 2020, 01:16

4

2,051

by: bumpbot

08 Apr 2023, 06:18

ER

If 0 < x < 1 and m=(1/2^n)

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

anmolmakkarz17

06 Nov 2019, 04:05

15

5

2,051

by: wickedvikram

25 May 2023, 00:38

What is the remainder when n^2 is divided by 6? (1) n is a prime numb

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

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

amanvermagmat

02 Apr 2018, 04:45

4

2

2,051

by: bumpbot

29 Aug 2023, 11:38

ER

If P and Q are positive integers, are P and Q equal?

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

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

Bunuel

30 Dec 2022, 12:22

3

2,050

by: Crytiocanalyst

03 Jan 2023, 06:55

ER

If n is a positive integer, is n odd? (1) n can be expressed as a sum

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

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

Bunuel

05 Jan 2022, 08:30

2

2,050

by: SatvikVedala

25 Jan 2023, 10:21

ER

What is the units digit of the product of m! and n!?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

02 May 2016, 22:20

2

2,050

by: bumpbot

24 Jun 2024, 04:43

ER

Is a + b > c + d?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

chetan2u

24 Dec 2017, 04:13

3

2,049

by: hellosanthosh2k2

13 Jan 2018, 11:04

ER

What is x ? (1) The ratio of x:y is 1:3. (2) The ratio of y:z is 1:2.

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

18 Nov 2018, 23:58

2

2,049

by: DavidTutorexamPAL

20 Nov 2018, 01:58

ER

If positive integers a, b and c are such that a < b < c, is the produc

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

24 Sep 2018, 06:12

2

2,049

by: rahul12988

11 Sep 2019, 05:30

ER

What is the value of a+b ?

Poor Quality

Poor Quality hide tags

summer101

02 Jun 2013, 05:07

2

2,048

by: Bunuel

02 Jun 2013, 10:45

ER

If ab ≠ 0, what is the value of 1/a + 1/b ? (1) a + b = -1 (2) ab = 6

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

01 Nov 2018, 00:06

1

2

2,048

by: Bunuel

01 Nov 2018, 02:08

ER

Is city A closer to city B than it is to city C?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

17 Oct 2019, 23:47

2

2,048

by: MsInvBanker

18 Oct 2019, 00:51

ER

What is the value of n + p? (1) m = 4 - q (2) mn + pq + mp + nq = 6

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

21 Jan 2020, 04:27

1

2,048

by: GMATinsight

21 Jan 2020, 05:04

ER

What is the value of x^3y^2 + 2098/(xy^2) + 1/x -x^y, given x, and y

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Bunuel

28 Jan 2021, 01:15

13

4

2,048

by: rsrighosh

14 Apr 2021, 07:12

ER

Is |2x - 7| > y ?

655-705 (Hard) | Absolute Values, Inequalities

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

amanvermagmat

05 Jul 2018, 08:30

3

2,048

by: HoudaSR

12 Jun 2023, 08:54

In an election four parties A, B, C and D contested for a post. 40% of

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Adityachopra1

05 Aug 2023, 00:35

1

3

2,048

by: walterwhite756

06 Aug 2023, 10:22

ER

In the sequence a1, a2, ..., a(n), each term after the first is 3 grea

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

15 Jan 2021, 09:15

2

2,047

by: TarunKumar1234

16 Jan 2021, 09:36

ER

Working at a constant rate, pipe B can fill a container in 100 minutes

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

01 Nov 2023, 01:30

1

4

2,047

by: sayan640

27 May 2024, 21:25

ER

If y is an integer, is y = 0? (1) When y is divided by an even intege

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

12 Dec 2016, 12:50

1

2,046

by: BrentGMATPrepNow

12 Dec 2016, 14:54

ER

Is b an integer? (1) a^b is an integer (2) a is an integer

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 Apr 2018, 04:41

4

2,046

by: ujjwal80

06 Apr 2018, 22:46

ER

How long did it take Ms. Nkalubo to drive her family nonstop from her

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

Bunuel

12 Feb 2019, 00:47

6

3

2,046

by: bumpbot

05 May 2026, 22:48

Monica went to the market to buy fruits. She has to buy at least 15 un

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

nick1816

13 Jun 2019, 04:42

1

2,045

by: MahmoudFawzy

13 Jun 2019, 05:29

ER

Does ax = 5 x? (1) ax = 5 (2) x = 1

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

07 Jan 2021, 01:15

10

5

2,045

by: GCMEMBER

08 Jan 2021, 00:53

ER

Yesterday, 4 friends were selling waffles in a stall. Did any of them

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

29 Dec 2021, 07:30

5

1

2,045

by: ElninoEffect

03 Jan 2022, 07:53

ER

Is xy divisible by 3, if xy is a 2-digit number, where x and y are sin

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

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

chetan2u

14 Sep 2019, 20:53

7

3

2,045

by: bumpbot

18 Sep 2023, 12:11

ER

C is a circle in the xy-coordinate plane with center at (0, 0) and rad

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Russ19

07 Aug 2021, 06:15

7

2

2,045

by: bumpbot

27 Sep 2023, 16:55

ER

How much money did Day School D spend on operating expenses?

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Sajjad1994

25 Sep 2017, 12:24

2

4

2,044

by: sam3378

14 Nov 2018, 23:06

ER

A certain car rental agency rented 25 vehicles yesterday, each of

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 Nov 2022, 09:34

2

1

2,044

by: stne

12 Nov 2022, 00:02

ER

What is the standard deviation of Set A, which has 9 terms? 1) All di

605-655 (Medium) | Statistics and Sets Problems

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

GMATinsight

02 Mar 2025, 01:59

4

5

2,044

by: bumpbot

06 Jan 2026, 08:34

ER

If the mean (arithmetic average) of eight numbers is 60, how many of

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

26 Mar 2018, 23:07

1

2

2,042

by: EgmatQuantExpert

28 Mar 2018, 02:42

ER

If x and y are integers and x>y, is xy>0?

555-605 (Medium) | Inequalities, Number Properties

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

chetan2u

02 Apr 2016, 00:32

5

3

2,042

by: bumpbot

25 Sep 2023, 08:30

ER

In OAB the point O is the origin, B is on X-axis, point A is in 1st q

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

GMATinsight

09 Aug 2020, 21:32

12

5

2,041

by: dwu21

10 Aug 2020, 11:26

ER

The symbols $ and # each represent one of the following operations:

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

BrentGMATPrepNow

06 Aug 2019, 08:11

5

3

2,041

by: bumpbot

21 Jan 2025, 12:14

ER

Ten pressure measurements were taken for the liquid flowing through a

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

27 Dec 2023, 02:30

10

2

2,041

by: bumpbot

04 Feb 2025, 10:21

ER

If r and s are positive integers, what is the remainder when r + s is

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

01 Feb 2024, 02:30

9

3

2,041

by: bumpbot

21 Apr 2025, 09:41

ER

p is a positive integer greater than 100. Is p divisible by 36?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

preetamsaha

12 May 2020, 20:11

8

4

2,040

by: bumpbot

28 Mar 2024, 00:18

ER

What is the value of the two-digit integer a?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

26 Jul 2018, 01:16

5

2,039

by: ShardulPendharkar

26 Jul 2018, 09:10

ER

ABA represents a three-digit number having digits A and B; BC3 represe

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

Bunuel

28 Jul 2017, 01:24

7

4

2,039

by: bumpbot

12 May 2019, 20:29

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

27 Jun 2022, 04:30

3

5

2,039

by: Its_me_aka_ak

28 Aug 2023, 08:55

ER

Adam can type at a constant rate of 50 words per minute and Bernie can

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

GMATinsight

20 Mar 2021, 01:50

15

5

2,039

by: bumpbot

25 Apr 2026, 23:00

ER

Is x a negative number?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Dec 2017, 00:53

3

5

2,038

by: spetznaz

17 Apr 2018, 07:30

ER

A salesperson is paid a fixed monthly salary of $2,000 and a commissio

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

21 Apr 2021, 08:30

2

2,038

by: sujoykrdatta

21 Apr 2021, 20:35

ER

The function f is defined for all positive integers p by the following

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

10 Sep 2017, 04:56

2

2,037

by: pushkarajnjadhav

10 Sep 2017, 09:50