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

78,870

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

856

24

188,614

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

488,058

by: bb

29 Aug 2025, 13:27

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

2,034

by: Its_me_aka_ak

28 Aug 2023, 08:55

ER

What is the value of n^2? (1) n = |n| (2) |n| = 1

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

Bunuel

02 May 2021, 00:30

2

2,034

by: Ekland

02 May 2021, 02:04

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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

2,035

by: bumpbot

21 Apr 2025, 09:41

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

2,035

by: dwu21

10 Aug 2020, 11:26

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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

2,035

by: bumpbot

12 May 2019, 20:29

ER

In a certain international contest the winners received only gold and

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

13 May 2021, 00:15

5

4

2,036

by: bumpbot

30 Apr 2026, 02:50

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

2,036

by: EgmatQuantExpert

28 Mar 2018, 02:42

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In a sequence S, each term after the second term is 3 less than preced

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

05 Jan 2022, 03:30

3

1

2,037

by: ElninoEffect

18 Jan 2022, 21:48

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

2,038

by: bumpbot

29 Aug 2023, 11:38

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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

2,038

by: bumpbot

08 Apr 2023, 06:18

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

2,038

by: stne

12 Nov 2022, 00:02

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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

2,038

by: TarunKumar1234

16 Jan 2021, 09:36

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

2,040

by: bumpbot

06 Jan 2026, 08:34

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

2,040

by: sayan640

27 May 2024, 21:25

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

2,040

by: sam3378

14 Nov 2018, 23:06

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

2,041

by: bumpbot

18 Sep 2023, 12:11

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

2,041

by: rsrighosh

14 Apr 2021, 07:12

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

2,041

by: GCMEMBER

08 Jan 2021, 00:53

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

2,041

by: MahmoudFawzy

13 Jun 2019, 05:29

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

2,041

by: BrentGMATPrepNow

12 Dec 2016, 14:54

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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

2,042

by: ujjwal80

06 Apr 2018, 22:46

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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

2,043

by: Crytiocanalyst

03 Jan 2023, 06:55

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

2,043

by: chetan2u

27 Nov 2021, 20:40

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

2,043

by: GMATinsight

21 Jan 2020, 05:04

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

2,043

by: rahul12988

11 Sep 2019, 05:30

ER

What is the probability that on a given workday Mr. Jonathan dresses

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

26 Jul 2022, 01:30

6

3

2,044

by: yashhw

26 Mar 2026, 23:20

ER

If Set S consists of 8 numbers taken from Set B, what is the standard

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

07 Apr 2021, 02:59

8

2

2,044

by: bumpbot

19 Dec 2025, 03:24

ER

Blair is shopping for a meal. He buys truffles, caviar, tuna, and grap

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

11 Jul 2018, 00:12

3

4

2,044

by: bumpbot

27 Dec 2024, 07:16

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

2,044

by: bumpbot

24 Jun 2024, 04:43

ER

In a factory, there are workers, executives, and clerks. How many

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 May 2024, 01:30

4

2,044

by: Edoua

07 May 2024, 07:40

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

2,044

by: walterwhite756

06 Aug 2023, 10:22

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

2,044

by: HoudaSR

12 Jun 2023, 08:54

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

2,044

by: wickedvikram

25 May 2023, 00:38

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

2,044

by: mohagar

28 Jan 2020, 22:16

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

2,044

by: MsInvBanker

18 Oct 2019, 00:51

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

2,044

by: DavidTutorexamPAL

20 Nov 2018, 01:58

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

2,045

by: SiddharthR

31 Aug 2021, 11:02

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

2,045

by: sumit411

29 Aug 2018, 03:10

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

2,045

by: amanvermagmat

16 Aug 2018, 10:42

ER

What is the value of a+b ?

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summer101

02 Jun 2013, 05:07

2

2,045

by: Bunuel

02 Jun 2013, 10:45

ER

John distributed a total of 625 chocolates among a group of boys and

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

19 Dec 2019, 04:00

6

3

2,046

by: bumpbot

05 Nov 2025, 09:30

ER

Solution A and solution B both contain only water and alcohol.

605-655 (Medium) | Mixture Problems

605-655 (Medium) | Mixture Problems hide tags

Bunuel

27 Aug 2024, 01:30

12

2

2,046

by: bumpbot

08 Oct 2025, 00:14

ER

Assume that neither x nor y is equal to 0, to permit division by x and

555-605 (Medium) | Fractions and Ratios

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

Archit3110

20 Oct 2021, 01:43

2

2,046

by: bumpbot

23 Nov 2024, 00:31

ER

What is the ratio of x to y? (1) The ratio of 0.2x to 3y is 1 to 6.

505-555 (Easy) | Fractions and Ratios

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

Bunuel

05 Apr 2022, 01:30

3

1

2,046

by: TarunKumar1234

05 Apr 2022, 19:55

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

2,046

by: Bunuel

01 Nov 2018, 02:08

ER

In a certain Asian studies class, the number of students that have not

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

05 May 2021, 04:00

4

3

2,048

by: bumpbot

13 Jun 2025, 22:00

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

2,048

by: SatvikVedala

25 Jan 2023, 10:21

ER

If x, y and z are positive integers, is xyz divisible by 3?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

23 May 2021, 12:41

2

2,048

by: lalaland1234545

23 May 2021, 12:57

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

2,048

by: Bunuel

10 Sep 2019, 00:45

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

2,049

by: nasgmatbag

19 Sep 2023, 01:57