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

178

15

78,885

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

188,619

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

488,090

by: bb

29 Aug 2025, 13:27

ER

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

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

Bunuel

18 Sep 2023, 01:30

2

1

1,251

by: chetan2u

18 Sep 2023, 02:27

ER

What is the value of m ? (1) m^2 + n^2 = 0 (2) m^2 = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Sep 2023, 01:30

2

1

949

by: hloonker

18 Sep 2023, 11:19

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What is the value of a? (1) 5 < a < 7 (2) a^2 = 36

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

19 Sep 2023, 01:30

2

1

1,052

by: GMATinsight

19 Sep 2023, 03:43

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What is the value of ab ? (1) a^2 + b^2 = 52 (2) a + b = 2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

19 Sep 2023, 01:30

2

1

1,136

by: GMATinsight

19 Sep 2023, 03:47

If x is odd, and x=4+3n

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

gmatophobia

23 Sep 2023, 11:32

2

5

1,838

by: mialanknox

24 Sep 2023, 01:58

ER

If m is an integer, is m odd? (1) 1 + m^2 is an odd integer. (2) 5m

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

15 Aug 2019, 01:03

2

6

3,870

by: bumpbot

24 Sep 2023, 15:14

ER

If 50 - 7 < x < 50 + 7, then what is the value of x?

555-605 (Medium) | Inequalities, Number Properties

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

Bunuel

25 Sep 2023, 08:15

2

989

by: IshanSaini

25 Sep 2023, 11:36

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If x and y are integers, is x even? (1) x·y is even. (2) x=6y

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

26 Sep 2023, 01:30

2

1

970

by: nasgmatbag

26 Sep 2023, 03:03

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What is the value of (3/2x)/(2/3y + 3/2y) ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Sep 2023, 01:30

2

969

by: envy5

26 Sep 2023, 03:41

ER

What is the remainder when 2^k is divided by 10?

555-605 (Medium) | Exponents, Remainders

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

Bunuel

27 Sep 2023, 05:15

2

1

1,081

by: LucienH

27 Sep 2023, 14:48

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Is 2 < z < 2? (1) z^2 < 4 (2) z^2 > 4

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

27 Sep 2023, 01:31

2

1

1,149

by: gmatophobia

27 Sep 2023, 22:53

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If xy > 0, is x^3y^4 > 0? (1) x > 0 (2) y > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Sep 2023, 05:15

2

848

by: nasgmatbag

28 Sep 2023, 07:54

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Is x|y| = xz? (1) x, y, and z are positive (2) y^2 = z

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

30 Sep 2023, 08:15

2

1

797

by: Kinshook

30 Sep 2023, 08:44

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Is x > y? (1) (x+y)/(xy) = 1 (2) x > 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

bekerman

26 May 2014, 10:46

2

2,962

by: bumpbot

01 Oct 2023, 02:13

ER

If x, y, and z are positive integers, what is the value of x?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

29 Sep 2023, 05:15

2

1

866

by: Maheshkv

02 Oct 2023, 08:51

ER

A company sells only two kinds of pie: apple pie and cherry pie. What

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

04 Sep 2023, 01:30

2

1

1,874

by: DanTheGMATMan

02 Oct 2023, 17:22

ER

Is x > 6? (1) x/y > 1.4 (2) The average of x and y is 2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

02 Mar 2022, 05:00

2

1,801

by: LAKSHAY1709

03 Oct 2023, 09:22

ER

What is the remainder when the positive integer N is divided by 2?

555-605 (Medium) | Multiples and Factors, Remainders

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

Sajjad1994

02 Oct 2023, 00:00

2

3

1,517

by: IshanSaini

03 Oct 2023, 12:01

ER

X is a 4-digit integer, and Y is a 3-digit integer. Is the sum of the

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

04 Oct 2023, 01:30

2

1

995

by: LucienH

04 Oct 2023, 16:38

ER

A box contains 90 jelly beans, of which some are orange, some are purp

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

23 Aug 2016, 02:44

2

6

8,141

by: Bunuel

04 Oct 2023, 23:44

ER

If a and b are integers greater than zero and a/b = 16, what is the va

505-555 (Easy) | Multiples and Factors

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

Bunuel

10 Oct 2019, 02:11

2

1,337

by: bumpbot

05 Oct 2023, 05:11

ER

In the x-y plane what is the area of a certain circle?

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

MathRevolution

20 Jan 2017, 06:26

2

3

2,264

by: bumpbot

07 Oct 2023, 00:44

ER

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

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

05 Oct 2023, 05:15

2

1

1,112

by: chetan2u

07 Oct 2023, 02:52

ER

What is the value of |a - b|? (1) |a + b| = 5 (2) ||a| - |b|| = 5

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

Bunuel

05 Oct 2023, 08:15

2

1

1,128

by: stne

08 Oct 2023, 01:30

ER

Is |x + y| < |x| + |y|? (1) x + y < 0 (2) x < y

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

08 Oct 2023, 08:15

2

1

1,310

by: chetan2u

08 Oct 2023, 21:49

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

1,832

by: nasgmatbag

10 Oct 2023, 04:57

ER

If x and y are integers. What is the value of x + y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

GMATBusters

06 Apr 2020, 22:36

2

4

1,753

by: bumpbot

14 Oct 2023, 04:54

ER

The savings from a persons income is the difference between his or he

555-605 (Medium) | Fractions and Ratios

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

Bunuel

05 Oct 2023, 01:30

2

1

1,563

by: DanTheGMATMan

15 Oct 2023, 12:46

ER

If l and m are parallel in the figure above, which is greater: x + y

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

22 Jan 2016, 10:42

2

5

2,102

by: bumpbot

15 Oct 2023, 23:48

ER

What is the area of triangle ABC with sides AC = 15 and Side BC=4/5 AC

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

27 Jan 2020, 02:53

2

4

1,710

by: GMATBusters

16 Oct 2023, 23:32

ER

What is the value of |m| - |n|? (1) n^2 = 36 (2) m^2 = 81

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

Bunuel

28 Mar 2018, 23:52

2

3

5,223

by: Bunuel

21 Oct 2023, 03:41

ER

What is the value of integer a ? (1) 1 a^3 54 (2) |3a| = a^2

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

18 Oct 2023, 01:30

2

3

1,342

by: Fdambro294

24 Oct 2023, 00:16

ER

In quadrilateral LMNP, MN is parallel to PL, what is the measure of an

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Jun 2022, 23:30

2

1,002

by: bumpbot

24 Oct 2023, 20:54

Is m > n? (1) m + k > n + k (2) m – n > 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Russ19

11 Oct 2020, 07:17

2

1,593

by: bumpbot

24 Oct 2023, 21:00

ER

The operators ‘*’ and ‘+’ are defined on the binary numbers (binary nu

505-555 (Easy) | Functions and Custom Characters

505-555 (Easy) | Functions and Custom Characters hide tags

Bunuel

15 Jul 2019, 00:13

2

2,052

by: bumpbot

25 Oct 2023, 01:06

ER

If x is a positive integer, is x the square of an integer?

555-605 (Medium) | Multiples and Factors

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

Bunuel

25 Oct 2023, 01:30

2

1

1,126

by: cosmoboiAB

25 Oct 2023, 10:43

ER

In triangle ABC, AB = x, BC = y, and CA = y-4. Which of the three angl

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

31 Aug 2022, 01:30

2

1,624

by: bumpbot

25 Oct 2023, 15:43

Is n = 0? (1) n! = 1 (2) n^2 = n^3 = n^5

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

fitzpratik

21 Oct 2018, 19:12

2

1,615

by: bumpbot

25 Oct 2023, 21:25

ER

Little Timmy spends half of his allowance on his favorite pet Din and

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

18 Jul 2016, 08:22

2

5

2,349

by: bumpbot

25 Oct 2023, 21:57

ER

Is x < y ? (1) y = x + 1 (2) 1 > x y + 1

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

26 Oct 2023, 01:30

2

798

by: VivekSri

26 Oct 2023, 10:37

ER

The Townville museum was open for 7 consecutive days. If the number of

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

03 Mar 2021, 14:57

2

3

8,072

by: bumpbot

27 Oct 2023, 11:48

ER

Is x > z ? (1) x > 0 (2) z > 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

ChandlerBong

25 Jul 2023, 11:18

2

4

1,969

by: Bunuel

27 Oct 2023, 14:48

ER

Is y positive? (1) |3y| > 18 (2) y > 3

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

30 Oct 2023, 01:30

2

1,194

by: vanhanguyen267

30 Oct 2023, 08:17

ER

A certain club has 20 members. How many of the members of the club are

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

28 Oct 2015, 07:01

2

4

3,870

by: surah

30 Oct 2023, 22:05

ER

Is n an integer? (1) n/3 is an integer (2) 2n is an integer

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

TheGmatTutor

22 Jun 2010, 16:16

2

4,010

by: surah

30 Oct 2023, 22:08

ER

What is the value of x ? (1) (x 1)(x 2.5) = 1 (2) |x 5| = 2

655-705 (Hard) | Absolute Values, Algebra

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

Bunuel

01 Nov 2023, 01:30

2

1

1,655

by: chetan2u

01 Nov 2023, 09:42

ER

A certain dealership has two locations. Last month, an average (arithm

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

05 May 2017, 03:49

2

4

2,868

by: Its_me_aka_ak

02 Nov 2023, 07:16

ER

What is the numerical value of the expression (3m - n)/(n - m)?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

14 Jan 2018, 06:01

2

6

3,677

by: bumpbot

05 Nov 2023, 20:57

ER

What is the value of Pamela's Porsche? (1) The value of Pamela's Pors

505-555 (Easy) | Fractions and Ratios, Word Problems

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

Bunuel

06 Nov 2023, 02:30

2

1

1,062

by: VibhuAnurag

09 Nov 2023, 04:44

ER

Charles the dog weighs 120 pounds. 3 months from now, will Charles wei

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

07 Nov 2023, 02:30

2

1

1,244

by: stne

09 Nov 2023, 05:25