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

79,419

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

188,928

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

488,599

by: bb

29 Aug 2025, 13:27

ER

Helena invested $8000 in the Tallahassee City Bank at z% simple annual

Sub 505 (Easy) | Percent and Interest Problems, Word Problems

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

Bunuel

15 Jan 2020, 02:24

2

2,508

by: bumpbot

28 Aug 2023, 05:58

ER

If n is an integer between 3 and 9, what is the value of n ? (1) On t

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

15 Jan 2020, 02:25

2

5,434

by: BrentGMATPrepNow

24 Jun 2020, 09:45

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If s < p < t, is the average (arithmetic mean) of s and t equal to 5p/

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

15 Jan 2020, 02:27

1

3

2,094

by: bumpbot

03 Feb 2023, 09:09

ER

What is the ratio of the average (arithmetic mean) weight of students

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

15 Jan 2020, 02:28

3

2

2,972

by: bumpbot

24 Jun 2021, 19:12

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Is X an integer if AB > 0? (1) X = 2A - 5B (2) A = B

555-605 (Medium) | Algebra, Inequalities

555-605 (Medium) | Algebra, Inequalities hide tags

Bunuel

15 Jan 2020, 02:31

1

1,346

by: GMATinsight

15 Jan 2020, 02:50

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What is the median of the set {w, x, y, z}? (1) The average (arithmet

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

15 Jan 2020, 02:33

1

2

1,115

by: Archit3110

15 Jan 2020, 02:56

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If n is a positive integer, is 5 a factor of n?

555-605 (Medium) | Multiples and Factors

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

Bunuel

15 Jan 2020, 02:34

2

1,442

by: Archit3110

15 Jan 2020, 02:46

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

655-705 (Hard) | Exponents, Inequalities

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

CareerGeek

15 Jan 2020, 04:20

4

2

983

by: hardikajmani

29 Jan 2020, 07:45

ER

In one 30 day month, Joeś computer store sold computers at their regul

605-655 (Medium) | Percent and Interest Problems, Word Problems

605-655 (Medium) | Percent and Interest Problems, Word Problems hide tags

Bunuel

16 Jan 2020, 01:49

14

13

4,292

by: Postponemendor

04 Dec 2024, 06:07

ER

If n is a positive integer greater than 2, what is the value of n ?

805+ (Hard) | Exponents, Number Properties

805+ (Hard) | Exponents, Number Properties hide tags

Bunuel

17 Jan 2020, 00:02

20

15

5,730

by: bumpbot

09 Mar 2022, 19:30

ER

If k is the quotient when a is divided by b, and a and b are distinct

705-805 (Hard) | Multiples and Factors +2 tags

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

Bunuel

17 Jan 2020, 02:14

12

6

4,255

by: bumpbot

23 Apr 2024, 22:02

ER

There is a set of beads, each of which is painted either red or blue.

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

17 Jan 2020, 02:16

8

2

3,817

by: bumpbot

22 Apr 2025, 18:49

ER

If a and b are both positive integers greater than 1 and a^b = a^(11b)

655-705 (Hard) | Absolute Values, Exponents

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

Bunuel

17 Jan 2020, 02:18

10

5

4,070

by: bumpbot

10 Aug 2022, 10:03

ER

Is 2^(y+z)*3^x*5^y*7^z < 90^y*14^z?

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

17 Jan 2020, 02:22

3

7

2,689

by: satya2029

21 Jan 2020, 00:13

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Is pq > 0? (1) (2q)^p = 1 (2) p < 0

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

17 Jan 2020, 02:33

10

6

7,739

by: bumpbot

12 Jul 2021, 13:59

ER

Last month, a certain manufacturer sold a total of 1,000 units of its

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

17 Jan 2020, 02:37

7

4

4,440

by: bumpbot

11 Aug 2023, 22:18

ER

Is the median of class A and class B combined greater than the mean of

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

17 Jan 2020, 02:39

9

2

4,882

by: bumpbot

21 Aug 2022, 16:16

ER

Is rs/(r + s) > 1/2 ? (1) r > 1 and s > 1 (2) r > 2 and s > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

17 Jan 2020, 02:42

10

3

5,117

by: Bunuel

09 Sep 2023, 11:36

ER

Is x a prime number, given that x is a positive integer?

605-655 (Medium) | Exponents, Inequalities

605-655 (Medium) | Exponents, Inequalities hide tags

Bunuel

17 Jan 2020, 02:44

6

4

6,850

by: Tonkotsu

26 Dec 2020, 18:38

ER

If x and y are unknown positive integers, is the mean of the list {6,

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

17 Jan 2020, 02:45

28

8

12,969

by: bumpbot

02 Mar 2025, 19:25

What is the value of x/2 - y/4? (1) 2x = y + 6 (2) y/2 = x - 3

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Russ19

18 Jan 2020, 02:43

3

1

1,504

by: JohnWidestone

17 Jan 2020, 10:30

ER

If a and n are positive numbers, does 2a^(2x) = n ?

805+ (Hard) | Exponents, Inequalities

805+ (Hard) | Exponents, Inequalities hide tags

Bunuel

19 Jan 2020, 23:10

22

9

5,817

by: bumpbot

27 Jul 2022, 05:08

ER

What is the perimeter of the shape below?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

tkbchimyjr18

20 Jan 2020, 22:51

2

3

1,766

by: GMATinsight

21 Jan 2020, 01:40

ER

If a and b are nonzero integers, is a^b an integer?

805+ (Hard) | Exponents +2 tags

805+ (Hard) | Exponents, Inequalities, Number Properties hide tags

Bunuel

21 Jan 2020, 01:22

24

14

9,731

by: bumpbot

13 Jul 2023, 16:24

ER

A certain voting bloc has how many voters?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Jan 2020, 04:18

1

2,328

by: IanStewart

21 Jan 2020, 04:26

ER

If x, n, and m are positive integers and x/ n = m, is x divisible by 3

505-555 (Easy) | Multiples and Factors

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

Bunuel

21 Jan 2020, 04:20

10

7

6,532

by: bumpbot

12 Mar 2024, 02:04

ER

If 72 cupcakes must be divided equally among the students in a certain

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Jan 2020, 04:23

9

3

4,236

by: bumpbot

02 Mar 2025, 11:06

ER

Is Z > 10 - Z? (1) Arnold scored Z points more than Jessie. (2) Togeth

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

21 Jan 2020, 04:25

1

1,051

by: GMATinsight

21 Jan 2020, 05:12

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

2,054

by: GMATinsight

21 Jan 2020, 05:04

ER

Is x > y? (1) x - y - 1 > 0 (2) x - y + 1 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

21 Jan 2020, 04:28

4

3

7,900

by: GMATBusters

04 Sep 2024, 05:16

ER

What is the value of (x + y)^2 (1) x^2 + xy = 3 (2) y^2 + yx = 5

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

21 Jan 2020, 04:29

7

2

3,769

by: bumpbot

03 Jun 2024, 00:20

ER

A rectangle has length in Y feet and width Z feet. What is its area in

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

21 Jan 2020, 04:34

1

2

1,467

by: QuantMadeEasy

21 Jan 2020, 22:50

ER

Is a > b ? (1) a < b^4 (2) a and b are both negative integers

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

21 Jan 2020, 04:37

1

1,263

by: GMATinsight

21 Jan 2020, 04:45

ER

How long will it take for two pipes A and B to fill an empty cistern

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

21 Jan 2020, 04:38

4

5

20,992

by: Bunuel

23 Apr 2024, 01:02

ER

If y > x, is y > 64 (1) x has 7 factors (all even but one) and is div

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Algebra, Distance and Speed Problems hide tags

Bunuel

21 Jan 2020, 04:40

19

7

3,060

by: bumpbot

05 Nov 2022, 08:41

ER

What is the total profit or loss to the shopkeeper in the sale of a mi

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

21 Jan 2020, 04:55

1

3

3,046

by: bumpbot

26 Feb 2023, 19:01

ER

If a, b, c, and d are positive integers (a − b)/(c − d) < −1 ?

655-705 (Hard) | Absolute Values, Inequalities

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

Diya52

21 Jan 2020, 05:36

37

9

6,903

by: bumpbot

18 Oct 2023, 08:36

ER

If c and d are positive integers, is c even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

21 Jan 2020, 05:50

4

2,662

by: Archit3110

22 Jan 2020, 01:45

ER

How many integers k are there such that x < k < y?

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

BrentGMATPrepNow

21 Jan 2020, 07:11

29

3

3,762

by: bumpbot

09 May 2024, 04:14

ER

If a is a positive integer, what is the value of 75 percent of b/a ?

Sub 505 (Easy) | Multiples and Factors, Percent and Interest Problems

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

Sajjad1994

21 Jan 2020, 10:13

1

2

1,432

by: IanStewart

22 Jan 2020, 23:26

ER

A survey of all the 100 employees in an organization revealed that 50%

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

22 Jan 2020, 01:46

19

14

3,689

by: bumpbot

14 Jul 2025, 10:32

Is the integer x equal to 81? (1) x is the square of an integer

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

archieprima

22 Jan 2020, 08:58

1

3

4,750

by: J2S2019

23 Jan 2020, 04:52

If the symbol ▼ represents a sequence of any two (unique or

705-805 (Hard) | Functions and Custom Characters

705-805 (Hard) | Functions and Custom Characters hide tags

archieprima

22 Jan 2020, 09:24

9

4

5,591

by: bumpbot

07 Jan 2024, 19:03

ER

If a and b are integers with each being greater than 1, is ab > 20?

605-655 (Medium) | Algebra, Inequalities

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

Bunuel

23 Jan 2020, 00:11

21

17

8,237

by: bumpbot

30 May 2021, 10:23

ER

If n is an integer, is n odd? (1) n/3 is divisible by 3 (2)

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

TheUltimateWinner

23 Jan 2020, 09:16

2

3

2,143

by: chetan2u

05 Nov 2022, 05:06

ER

If x^2y^3 = 200, what is xy ? (1) y is an integer (2) x is an integer

705-805 (Hard) | Algebra, Number Properties

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

1, 2

Bunuel

24 Jan 2020, 01:44

39

20

7,545

by: bumpbot

17 Mar 2025, 08:02

ER

Part of a sum was lent at 6% per annum

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

eka9045

30 Jan 2020, 22:57

7

2

1,959

by: bumpbot

12 Nov 2025, 23:19

ER

Is m^2/n>0?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

GMATBusters

25 Jan 2020, 23:52

1

9

1,491

by: firas92

28 Jan 2020, 10:31

ER

If x is a positive integer then find x? (1) x^2−5x+6=0 (2) x^2=3x

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

GMATinsight

26 Jan 2020, 05:44

7

1,906

by: MHIKER

12 Nov 2020, 07:38

ER

A certain bank has ten branches. What is the total amount of assets un

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

27 Jan 2020, 01:08

64

15

14,850

by: ManifestDreamMBA

06 Feb 2025, 09:02