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

78,632

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,469

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

487,851

by: bb

29 Aug 2025, 13:27

ER

In the sequence of nonzero numbers t1, t2, t3, , tn, , tn+1

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

quantum

18 Jun 2008, 10:23

58

10

33,629

by: bumpbot

16 Sep 2025, 09:23

ER

A certain packing box contains books between 50 to 60. How many books

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

quantman3

10 Nov 2011, 20:09

3

6

4,246

by: Bunuel

22 Aug 2016, 01:09

Is a/b > c/b?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

QuantMadeEasy

15 Feb 2020, 08:43

4

3

1,317

by: bumpbot

09 Jun 2025, 14:58

ER

Is integer x even? (1) 3x is even (2) x/3 is not odd

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

QuantMadeEasy

13 Oct 2024, 11:08

2

5

961

by: QuantMadeEasy

15 Oct 2024, 22:14

If m and n are prime numbers such that m<n, what is the value of m?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

QuantMadeEasy

02 Aug 2020, 12:11

7

2

2,196

by: bumpbot

11 Aug 2024, 04:06

ER

Is x an integer? (1) x^2 is an integer (2) 2*x is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

QuantMadeEasy

12 Feb 2020, 00:14

5

2

2,008

by: bumpbot

30 Jun 2024, 00:52

ER

If x and y are positive integers, what is the ratio of x to y?

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

QuantMadeEasy

12 Oct 2024, 05:24

8

3

3,811

by: bumpbot

02 Jun 2024, 10:05

If m and n are integers, is m^2n^2 an odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

QuantMadeEasy

01 Aug 2020, 11:56

5

4

2,121

by: bumpbot

02 Apr 2024, 10:23

ER

Is x^2 + y^2 – xy >0?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

QuantMadeEasy

12 Jul 2020, 11:43

8

5

8,391

by: bumpbot

24 Jan 2024, 01:55

ER

If a*b^(1/2) = c, what is the value of b?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

QuantMadeEasy

29 Jan 2020, 23:51

1

2

1,572

by: bumpbot

02 Dec 2023, 07:33

ER

What is the area of the shaded region? (1) The ratio of length of ar

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

QuantMadeEasy

19 Feb 2020, 01:17

3

5

1,990

by: Bunuel

08 Jun 2023, 23:39

ER

Is xy < 42? 1) x < 6 2) y < 7

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

QuantMadeEasy

05 May 2021, 04:37

4

2

1,709

by: bumpbot

06 Nov 2022, 12:32

ER

If xy ≠ 0, is x/y greater than y/x ?

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

QuantMadeEasy

16 Feb 2020, 01:27

8

3

2,764

by: VibhasJ

08 Jun 2021, 16:20

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If x is a positive integer, is x^2 divisible by 24?

505-555 (Easy) | Multiples and Factors

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

QuantMadeEasy

06 Sep 2020, 09:52

2

3

1,560

by: TestPrepUnlimited

10 Sep 2020, 17:06

Is integer x odd?

555-605 (Medium) | Arithmetic, Number Properties

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

QuantMadeEasy

29 Jul 2020, 04:59

4

2

1,867

by: Nums99

29 Jul 2020, 20:43

ER

If x and y are positive integers, what is the unit digit of the

555-605 (Medium) | Exponents, Number Properties

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

QuantMadeEasy

25 Feb 2020, 22:38

4

3,267

by: MathRevolution

29 Feb 2020, 12:03

ER

What is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

QuantMadeEasy

15 Feb 2020, 02:43

7

2

1,012

by: SaikatRoy

22 Feb 2020, 02:55

Is 1 < a < 0 ? (1) a^3 > a (2) a^2 > a^3

705-805 (Hard) | Exponents, Inequalities

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

QuantMadeEasy

09 Jul 2024, 00:18

2

4

1,696

by: QuantMadeEasy

19 Feb 2020, 20:21

ER

If m is an integer, is 2^m greater than 5^m?

655-705 (Hard) | Exponents, Inequalities

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

QuantMadeEasy

14 Feb 2020, 21:36

4

3

1,105

by: Bunuel

16 Feb 2020, 09:56

ER

What is the circumference of the circle with center O?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

QuantMadeEasy

06 Feb 2020, 23:41

2

1,278

by: BhishmaNaidu99

14 Feb 2020, 03:06

ER

If m and n are positive integers, is m/n an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

QuantMadeEasy

12 Feb 2020, 01:37

1

1,282

by: chetan2u

12 Feb 2020, 00:52

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

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

QuantMadeEasy

11 Feb 2020, 22:00

1

941

by: rajatchopra1994

11 Feb 2020, 22:37

ER

Is integer x odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

QuantMadeEasy

03 Feb 2020, 01:00

1

1,205

by: Bunuel

03 Feb 2020, 01:04

ER

Is a+b > 2?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

QuantMadeEasy

30 Jan 2020, 02:02

1

1,257

by: GMATinsight

30 Jan 2020, 03:55

ER

Every attendee at a monster truck rally paid the same direct

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Qoofi

09 Dec 2013, 00:19

30

19

10,097

by: bumpbot

17 Oct 2024, 13:13

ER

If p=(x^a+b)/(x^b), what is the value of positive integer p?

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

pyzo

05 Dec 2018, 14:29

14

7

4,905

by: Bunuel

07 May 2023, 10:11

ER

If s is the sequence of more than two observations

705-805 (Hard) | Statistics and Sets Problems

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

PyjamaScientist

03 Oct 2021, 00:30

15

3

1,847

by: bumpbot

23 Apr 2026, 01:37

For a series S, what percentage of the sum is the average?

655-705 (Hard) | Statistics and Sets Problems

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

PyjamaScientist

03 Oct 2021, 02:26

4

2

1,648

by: bumpbot

23 Jan 2026, 13:56

ER

In the equation x^2 + bx + c = 0, where b and c are constants, what is

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

PyjamaScientist

25 Oct 2021, 09:22

11

4

2,601

by: mahikapb

12 Sep 2025, 04:00

ER

The amount of water in a salt water sugar solution is increased by 2/5

805+ (Hard) | Mixture Problems

805+ (Hard) | Mixture Problems hide tags

PyjamaScientist

04 Dec 2021, 11:59

36

13

7,483

by: bumpbot

28 Jun 2025, 12:52

Is x greater than 2, if x is an integer?

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

PyjamaScientist

03 Nov 2021, 03:29

7

4

3,153

by: bumpbot

26 Jan 2024, 23:42

ER

If P and Q are integers and P>0, then is Q divisible by 2?

805+ (Hard) | Exponents, Number Properties

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

PyjamaScientist

09 Nov 2021, 22:40

29

6

5,119

by: bumpbot

19 Oct 2023, 01:33

ER

in triangle abc point d is on side ab between vertices A and B

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

PyjamaScientist

04 Dec 2021, 11:46

12

4

2,456

by: bumpbot

10 Aug 2023, 03:56

ER

During a sale at a store, Richard purchased five t-shirts

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

PyjamaScientist

26 Sep 2021, 12:27

3

6

1,853

by: chetan2u

10 Nov 2021, 01:14

If a, b, k are positive integers, is the sum (a + b) an even number?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

PyjamaScientist

18 Oct 2021, 03:58

2

1

1,472

by: Nidzo

18 Oct 2021, 03:56

ER

If x and y are integers, is 3x^4 + 4y even?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

PyjamaScientist

16 Oct 2021, 04:36

2

1

1,421

by: GMATinsight

16 Oct 2021, 04:56

ER

Two consecutive positive integers are divided by 25. What is the sum

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

pushpitkc

01 Oct 2018, 06:38

22

3

4,704

by: bumpbot

21 Jan 2026, 01:49

ER

If p,q and r are positive numbers, does q lie between p and r on the

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

pushpitkc

21 Sep 2017, 00:25

70

9

12,076

by: bumpbot

06 Jan 2026, 01:00

ER

If p and q are positive integers, is 21^p/630^q a terminating

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

pushpitkc

01 Jan 2018, 00:02

27

5

5,748

by: bumpbot

22 Sep 2025, 08:32

ER

Of the 90 houses in a certain community, 60 have a garden. How many

705-805 (Hard) | Statistics and Sets Problems

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

pushpitkc

16 Oct 2017, 13:47

27

6

6,403

by: bumpbot

07 Sep 2025, 13:33

ER

If P is a positive integer, P= ?

555-605 (Medium) | Number Properties, Remainders

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

pushpitkc

14 Sep 2017, 21:06

41

3

6,981

by: bumpbot

21 Aug 2025, 06:06

ER

What is the value of p+q?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

pushpitkc

15 Nov 2017, 11:03

10

5

9,869

by: bumpbot

05 Aug 2025, 10:20

ER

If p,q are distinct and greater than 1, p + q =

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

pushpitkc

02 Mar 2019, 01:26

10

5

3,420

by: bumpbot

07 Jan 2024, 02:26

ER

a, b, c, and d lie on the number line such that a < b.

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

pushpitkc

23 Aug 2018, 00:36

14

7

4,791

by: bumpbot

13 Aug 2023, 04:37

ER

What is the remainder when 6^x is divided by 10

505-555 (Easy) | Number Properties, Remainders

505-555 (Easy) | Number Properties, Remainders hide tags

pushpitkc

28 Nov 2017, 11:14

9

5

4,754

by: TBT

24 Jan 2023, 00:54

ER

Is x > 0? (1) |3 - x| < |x + 5| (2) |3 - 2x| < x - 1

655-705 (Hard) | Absolute Values, Inequalities

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

pushpitkc

27 Dec 2017, 11:16

8

7

2,966

by: bumpbot

03 Dec 2019, 20:15

ER

The figure shows a rectangle with a triangle inscribed in it

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

pushpitkc

24 Nov 2018, 23:34

3

2,874

by: chetan2u

24 Nov 2018, 23:52

ER

Is the positive integer N a prime number?

555-605 (Medium) | Multiples and Factors

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

pushpitkc

30 Sep 2017, 10:26

2

2,625

by: MathRevolution

01 Oct 2017, 14:09

ER

If p and q are positive integers, is p > q?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

pushkarajnjadhav

22 Aug 2017, 13:33

9

3

4,239

by: bumpbot

25 Jan 2026, 00:19

ER

If p and q are integers, is p^q >1 ? (1) pq < 0 (2) q^p < 1

655-705 (Hard) | Exponents, Inequalities

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

push12345

02 Oct 2018, 06:07

24

6

7,530

by: bumpbot

26 Jun 2025, 22:22