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

79,061

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

857

24

188,724

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

488,274

by: bb

29 Aug 2025, 13:27

ER

If f(n) denotes the remainder of n^2 divided by k, where n and k are

805+ (Hard) | Functions and Custom Characters

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

Bunuel

15 Jan 2024, 02:30

12

5

1,844

by: bumpbot

26 Dec 2025, 08:48

ER

If A and B are both positive, A is what percent of B?

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

20 Apr 2018, 06:33

1

2

1,843

by: push12345

07 May 2018, 07:34

ER

If the sum of three positive integers even? (1) The sum of the first

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

26 Sep 2018, 05:30

2

1

1,843

by: DavidTutorexamPAL

26 Sep 2018, 13:45

What is the sum of three consecutive odd numbers a, b, c such that a <

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

21 Jul 2018, 10:46

4

2

1,842

by: bumpbot

18 Oct 2023, 04:00

ER

During a five day charity drive, the least amount of money raised in

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

13 Sep 2024, 01:30

6

3

1,842

by: pierjoejoe

13 Oct 2024, 01:33

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What is the value of y?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

28 Aug 2016, 10:55

6

1,841

by: Balajikarthick1990

30 Aug 2016, 22:57

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If the lines shown in the picture touch the circle only at points A an

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

13 Sep 2018, 05:14

6

5

1,841

by: chetan2u

26 Sep 2018, 04:26

ER

If r is a positive integer, does r have exactly four distinct positive

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

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

Bunuel

29 Jan 2020, 01:56

1

1,841

by: IanStewart

29 Jan 2020, 08:04

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If n is a positive integer, is 361 a factor of n? 1) 76 is the greate

705-805 (Hard) | Multiples and Factors

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

Bunuel

15 Jan 2021, 01:15

3

1,841

by: ranjan1

16 Jan 2021, 02:43

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Is |2x−y|<10? (1) 2x−y<10 (2) y−2x<10

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

13 Apr 2021, 14:15

1

2

1,841

by: sumitkrocks

13 Apr 2021, 21:42

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Is x |y| > y^2? (1) x > 0 (2) x > y

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

Russ19

23 Oct 2020, 01:18

6

4

1,841

by: bumpbot

16 Sep 2022, 05:51

ER

Of a faculty of 90 high school teachers, how many have masters degrees

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

10 Apr 2018, 04:44

3

1,841

by: bumpbot

07 Mar 2023, 04:38

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If x and y are positive integers, 80 = 22x + y what is the value of y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Oct 2020, 08:46

3

4

1,840

by: bumpbot

26 Oct 2021, 00:29

ER

If each of the segments marked on the board above is of equal length,

505-555 (Easy) | Arithmetic, Geometry

505-555 (Easy) | Arithmetic, Geometry hide tags

Bunuel

27 Aug 2022, 01:45

1

1,840

by: av1901

01 Sep 2022, 21:09

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In the rectangular plane, point A has coordinates (a,0), point B has

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

25 Nov 2021, 01:00

3

2

1,840

by: bumpbot

21 Feb 2023, 20:39

ER

If z is a positive integer, such that z>1. What is the remainder when

655-705 (Hard) | Multiples and Factors, Remainders

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

happypuppy

23 Jun 2022, 11:17

4

2

1,840

by: bumpbot

21 Oct 2023, 04:13

ER

What is the value of x^(-6) ? (1) x^(-2) = 1/36 (2) x^6 = 46,656

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

Bunuel

29 Oct 2019, 02:17

2

1,840

by: bumpbot

24 Jun 2025, 11:44

ER

A cafeteria served hamburgers and hot dogs on a certain day. If the co

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

01 Aug 2017, 12:24

2

1,839

by: Apurve

01 Aug 2017, 12:49

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In the figure above, what is the value of d ?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

06 Feb 2018, 05:56

1

1,839

by: pushpitkc

06 Feb 2018, 10:09

ER

What is the remainder when n + 7 is divided by 8?

605-655 (Medium) | Multiples and Factors

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

Bunuel

14 Jan 2022, 02:30

5

4

1,839

by: bumpbot

21 Aug 2023, 07:50

If x and y are non-zero integers is 2x/5 - 3y/4 = 1?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

ChandlerBong

10 Apr 2023, 08:51

9

2

1,839

by: bumpbot

29 Jun 2024, 08:23

ER

Paul, a painter, paints only flowers or cats in his notebook. The pict

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

23 Jun 2021, 01:20

2

3

1,839

by: bumpbot

05 Apr 2025, 04:55

ER

Is m^n a perfect square?

Poor Quality

Poor Quality hide tags

barryseal

01 Dec 2018, 06:24

5

15

1,838

by: barryseal

03 Dec 2018, 00:11

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If x is a positive number, is x < 1 ? (1) 2x < 1 (2) 2x 2

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

23 Sep 2022, 06:23

1

1,838

by: chetan2u

24 Sep 2022, 22:28

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If x + y > 0, is xy^2 + x^2y > 0? (1) x > y (2) xy > 1

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

07 Sep 2023, 05:00

5

1,838

by: chetan2u

05 Dec 2023, 19:12

ER

If a^5*b^6*c^7 > 0, is a*b^3*c^5 <0 ? (1) b < 0 (2) c > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

13 Jul 2023, 01:30

4

1,838

by: bumpbot

30 Aug 2025, 21:06

Rajesh and Pihu started walking from the same point in opposite direct

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

amanvermagmat

25 Nov 2018, 22:09

5

4

1,837

by: soapbolt

27 Nov 2018, 00:11

ER

If 3x/2y = z, what is the value of x? (1) yz = 30 (2) y =10 and z = 3

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

07 May 2019, 00:51

2

1,837

by: NandishSS

07 May 2019, 03:18

ER

If a, b, and c are consecutive 2-digit positive integers in that order

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

MathRevolution

09 Aug 2018, 01:30

8

6

1,836

by: bumpbot

04 Sep 2019, 11:58

ER

A certain company produces exactly three products: X, Y, and Z. In 199

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

16 Feb 2022, 08:00

3

1

1,835

by: BrentGMATPrepNow

27 Feb 2022, 08:01

ER

If m and n are positive integers, what is the value of mn ?

555-605 (Medium) | Multiples and Factors

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

Bunuel

03 Sep 2022, 04:30

6

1

1,835

by: Nidzo

06 Sep 2022, 02:25

ER

What is the units digit of (a + b)^2 – (a - b)^2, where a and b are no

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

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

Bunuel

13 May 2020, 09:02

4

5

1,835

by: bumpbot

11 Jan 2023, 10:43

ER

What is the value of x^3 − y^3?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

19 Apr 2017, 07:56

2

1,834

by: rohit8865

19 Apr 2017, 08:28

ER

Roland and Felicia are testing circuit boards for wiring errors. Worki

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

13 Feb 2019, 00:48

2

5

1,834

by: bharat8484

07 Mar 2019, 04:32

ER

Consider a ten-digit integer A,BC6,7DE,000. Is the integer divisible

555-605 (Medium) | Multiples and Factors

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

Bunuel

10 Dec 2020, 01:15

8

11

1,834

by: bumpbot

09 Mar 2023, 02:10

ER

If a and b are positive integers, what is the remainder when 4^(a+1+2b

555-605 (Medium) | Exponents, Remainders

555-605 (Medium) | Exponents, Remainders hide tags

Bunuel

07 Dec 2020, 09:15

4

2

1,834

by: bumpbot

09 Jul 2023, 02:17

ER

What is the value of y x^2 x? (1) y = 3x (2) y = 4(x + 1)

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 Mar 2022, 08:30

2

1,834

by: nasgmatbag

10 Oct 2023, 04:57

ER

In a group of 70, every member speaks English or French.

655-705 (Hard) | Overlapping Sets, Word Problems

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

Bunuel

08 May 2025, 02:19

5

7

1,834

by: Bunuel

28 Oct 2025, 07:51

If |a| represents the 'absolute value of a' for any real number 'a',

705-805 (Hard) | Absolute Values, Number Properties

705-805 (Hard) | Absolute Values, Number Properties hide tags

amanvermagmat

21 May 2018, 21:54

8

3

1,834

by: bumpbot

12 Jan 2026, 00:45

ER

The distance between City A and City B is 120 miles. A freight train

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

Bunuel

22 Jul 2024, 01:30

8

3

1,834

by: Edskore

14 Mar 2026, 09:33

How many people received a raise of greater than 5%?

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

papagorgio

18 May 2017, 19:26

2

4

1,833

by: amanvermagmat

18 May 2017, 22:11

ER

What is the value of (x - 2)(2 + y) ? (1) xy = 6 (2) x + y = 5

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Jan 2020, 05:23

3

1,833

by: Bunuel

03 Nov 2021, 06:49

ER

What is the value of x?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

BrentGMATPrepNow

29 Aug 2022, 07:57

4

3

1,833

by: bumpbot

16 Feb 2025, 16:02

ER

A dress was initially listed at a price that would have given the

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

26 Nov 2024, 01:30

3

6

1,833

by: Nitkmr

11 Mar 2025, 07:48

ER

If a, b and c are different positive integers, is c the greatest value

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

BrentGMATPrepNow

18 Jul 2022, 09:33

8

3

1,832

by: bumpbot

05 Mar 2025, 02:23

In a certain class of n students, the average

705-805 (Hard) | Statistics and Sets Problems

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

gmatophobia

26 Sep 2023, 05:17

13

5

1,832

by: ahddhah

16 May 2025, 01:21

Is the number x a multiple of 12?

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MSFApplicant

22 Dec 2018, 20:13

3

1,831

by: assaadh

08 Jan 2019, 17:12

ER

If the average (arithmetic mean) of 4 numbers is 30, how many of the

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

14 Jul 2021, 09:00

1

3

1,831

by: TestPrepUnlimited

19 Jul 2021, 10:48

ER

A university awarded grants in the amount of either $7,000 or $10,000

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 Mar 2024, 01:30

5

1,831

by: Shubhradeep

12 Mar 2024, 14:13

ER

Is m+10 positive?

Poor Quality

Poor Quality hide tags

sandysilva

18 Dec 2017, 02:58

7

1,830

by: sandysilva

18 Dec 2017, 07:58