GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

79,103

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

188,739

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

488,310

by: bb

29 Aug 2025, 13:27

ER

Is 1/m < 1/n ? (1) m - n = 3 (2) 3n = m + 2

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

24 Jun 2017, 12:49

5

4

3,329

by: bumpbot

25 Apr 2022, 10:14

ER

What is the remainder when positive integer x is divided by 52?

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Bunuel

12 Jun 2017, 02:35

17

6

5,380

by: bumpbot

25 Apr 2022, 06:50

ER

What is the remainder when the sum of the positive integers x and y is

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

Bunuel

12 Nov 2017, 23:37

8

3

7,219

by: bumpbot

25 Apr 2022, 04:59

ER

If x is a multiple of 3, is xy divisible by 48? (1) x is divisible by

505-555 (Easy) | Multiples and Factors

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

Bunuel

22 Apr 2022, 01:30

1

2

1,324

by: GMATWhizTeam

25 Apr 2022, 03:45

ER

What is the greatest common divisor of a + b and 4?

505-555 (Easy) | Multiples and Factors

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

Bunuel

25 Apr 2022, 01:30

2

1

901

by: zhanbo

25 Apr 2022, 03:12

ER

When 15n where n is a positive integer, is divided by 6, the remainder

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

12 Nov 2017, 23:40

1

4

4,256

by: bumpbot

25 Apr 2022, 00:43

ER

If x^2 – y = w, what is the value of x? (1) w + y = 4 (2) y = 1

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

05 Jul 2018, 05:50

3

6

4,443

by: bumpbot

25 Apr 2022, 00:22

ER

If x is a positive number is x^(1/2) an integer?

555-605 (Medium) | Algebra +3 tags

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

Bunuel

24 Apr 2022, 14:00

1

1,337

by: thkkrpratik

24 Apr 2022, 23:35

ER

If the average (arithmetic mean) of three positive integers is 35, how

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

20 Apr 2022, 09:00

4

3

2,027

by: WizakoBaskar

24 Apr 2022, 22:42

ER

If M and N are positive integers, is M divisible by N?

705-805 (Hard) | Multiples and Factors

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

Bunuel

22 Apr 2022, 01:30

3

2

2,014

by: zhanbo

24 Apr 2022, 21:39

ER

If |m + 4| = 2, what is the value of m?

555-605 (Medium) | Absolute Values, Algebra

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

Bunuel

22 Oct 2016, 01:33

6

4

5,082

by: GMATWhizTeam

24 Apr 2022, 08:05

ER

If x > 0, does f(x^2) = f(x)^2 ? (1) f(x) = x (2) x = 9

555-605 (Medium) | Algebra, Functions and Custom Characters

555-605 (Medium) | Algebra, Functions and Custom Characters hide tags

Bunuel

07 Mar 2016, 03:25

35

6

17,831

by: GMATWhizTeam

24 Apr 2022, 07:59

ER

If n is a positive integer, what is the value of the hundreds digit of

555-605 (Medium) | Exponents +2 tags

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

Bunuel

19 Nov 2017, 23:40

17

7

4,142

by: bumpbot

24 Apr 2022, 07:39

ER

Is 3^n > 2^k ? (1) k = n + 1 (2) n is a positive integer.

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

03 Jan 2016, 13:51

12

9

4,000

by: bumpbot

24 Apr 2022, 06:51

ER

If Dr. Jones had started practicing medicine 12 years later than he

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

05 Apr 2017, 03:23

5

2

3,063

by: bumpbot

24 Apr 2022, 04:49

ER

Is x equal to –1? (1) |3x – 2| + |3x + 2| = 6 (2) |x – 1| + |3x + 2| =

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

Bunuel

14 Jul 2019, 23:27

13

5

2,334

by: Zyanpandit25

23 Apr 2022, 21:53

ER

Is y^2 = 0?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

11 Nov 2017, 09:34

1

2

3,041

by: bumpbot

23 Apr 2022, 09:46

ER

What is 2x ? (1) |2x – 2| + |2x + 2| = 4 (2) |3x – 1| + |3x + 1| = 6

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

12 Jul 2019, 01:11

7

3

2,895

by: bumpbot

23 Apr 2022, 05:58

ER

If x ≠ y, is x + y = xy?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Nov 2017, 09:39

9

5

7,457

by: bumpbot

23 Apr 2022, 05:56

ER

a and b are positive integers. What is the value of b?

555-605 (Medium) | Multiples and Factors

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

Bunuel

21 Apr 2022, 01:30

1

982

by: paulrahul

22 Apr 2022, 13:36

ER

Is the product of six consecutive positive integers a multiple of 576?

705-805 (Hard) | Multiples and Factors

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

Bunuel

21 Apr 2022, 01:30

1

3

2,022

by: GMATWhizTeam

22 Apr 2022, 01:37

ER

If sequence S has 250 terms, what is the 243rd term of S ?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

20 Nov 2017, 00:13

1

4

4,337

by: bumpbot

21 Apr 2022, 12:50

ER

What is the value of x? (1) |x+2| ≤ 4 (2) x^2 = 36

505-555 (Easy) | Absolute Values +2 tags

505-555 (Easy) | Absolute Values, Algebra, Inequalities hide tags

Bunuel

07 Nov 2017, 23:28

10

3

3,169

by: bumpbot

21 Apr 2022, 02:21

ER

Is the value of a^3 + 3ab equal to 0? (1) a = 0 (2) b = 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

20 Apr 2022, 06:30

2

1,128

by: GMATWhizTeam

20 Apr 2022, 11:10

ER

What is the value of x ? (1) (|x| - 1)(x - 2) = 0 (2) -1 ≤ x ≤ 1

505-555 (Easy) | Absolute Values, Algebra

505-555 (Easy) | Absolute Values, Algebra hide tags

Bunuel

07 Nov 2017, 23:50

5

6

5,010

by: bumpbot

20 Apr 2022, 10:19

ER

The figure above shows line l intersecting line m. What is the value

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

20 Apr 2022, 04:30

2

1,388

by: Arup04

20 Apr 2022, 09:45

ER

In corporation X, the finance division has an average annual salary of

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Apr 2022, 03:00

1

1,095

by: PyjamaScientist

20 Apr 2022, 03:12

ER

What is the value of x^5?

505-555 (Easy) | Algebra, Inequalities

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

Bunuel

23 Nov 2017, 05:51

5

3

2,378

by: PranavChadha

20 Apr 2022, 01:32

ER

The hexagon ABCDEF is inscribed in the circle with center O. What is

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

05 Nov 2017, 01:57

1

3

4,640

by: bumpbot

20 Apr 2022, 01:00

ER

In the figure below, AB and BC are parallel to the X-axis and Y-axis,

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

07 Nov 2018, 02:04

7

3

2,953

by: bumpbot

20 Apr 2022, 00:40

ER

If 5x + 10y = 65, what is the value of x? (1) x + y = 8 (2) x is an

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

02 May 2019, 06:33

2

4

2,470

by: bumpbot

19 Apr 2022, 08:50

ER

How many red balls are in the barrel?

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

29 Mar 2017, 04:47

9

3

3,354

by: bumpbot

19 Apr 2022, 07:42

ER

If xyz ≠ 0, is x^3 + y^3 + z^3 = 0?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Bunuel

11 Nov 2019, 04:53

17

2

3,892

by: bumpbot

18 Apr 2022, 12:34

ER

If r = (x+y)/2 and s = (x-y)/2, what is the value of r + s?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Nov 2017, 07:39

4

2

2,538

by: bumpbot

18 Apr 2022, 10:03

ER

Is x > 0? (1) |3x30|<20 (2) 3x 30 is greater than zero.

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

29 Apr 2016, 02:40

18

5

3,874

by: KarishmaB

17 Apr 2022, 22:02

ER

A set of positive integers contains twice as many even integers as odd

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

805+ (Hard) | Multiples and Factors, Number Properties, Probability hide tags

Bunuel

31 Aug 2015, 10:31

39

7

7,053

by: bumpbot

17 Apr 2022, 18:16

ER

Is ax = (7 + 5bx)/4 ? (1) x(4a - 5b) = 7 (2) a = 1

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

17 Jun 2018, 06:27

1

3

2,987

by: bumpbot

17 Apr 2022, 04:20

ER

Joseph had to type an article containing 10,000 words. How many minute

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

17 Mar 2017, 03:07

2

2,412

by: bumpbot

17 Apr 2022, 03:12

ER

If a < b, is a > 0? (1) a^2 < b^2 (2) a^2 < ab < b^2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

10 Aug 2018, 03:21

19

10

6,419

by: bumpbot

16 Apr 2022, 06:03

ER

In the figure above, points A, B, C, D, E and F lie on a line. If poin

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

15 Aug 2019, 06:49

5

3,516

by: bumpbot

16 Apr 2022, 05:11

ER

What is the area of the triangle inscribed within the circle as shown

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

11 Sep 2018, 02:34

4

3

2,248

by: bumpbot

16 Apr 2022, 04:59

ER

If the terms of a arithmetic sequence are 2, 4, 6, 8, 10, ..., xn, wha

555-605 (Medium) | Number Properties, Sequences

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

Bunuel

15 Apr 2022, 11:17

3

1

1,734

by: yashikaaggarwal

16 Apr 2022, 04:30

ER

Is 3 in set M? (1) 13 is in the set M. (2) If x is in the set, then x

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

Bunuel

15 Apr 2022, 11:16

1

1,190

by: yashikaaggarwal

16 Apr 2022, 04:16

ER

If x, y, and z are positive integers, is xz even?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

20 Nov 2017, 00:07

3

6

6,162

by: bumpbot

16 Apr 2022, 04:12

ER

What is the value of 3n - 4? (1) 6n – 10 = 30 (2) n/3 = 20/9

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

16 Oct 2019, 07:41

2

5,590

by: bumpbot

16 Apr 2022, 03:00

ER

Is quadrilateral ABCD a square? (1) AB = BC = CD = DA (2) x + y = 180

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

13 Nov 2017, 00:12

12

6

10,080

by: bumpbot

16 Apr 2022, 00:07

ER

What is the product of positive integers P and Q?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

13 Apr 2022, 04:00

4

2

1,222

by: Abhishekgmat87

14 Apr 2022, 11:02

ER

An increasing sequence M consists of 5 consecutive positive multiples

605-655 (Medium) | Remainders, Statistics and Sets Problems

605-655 (Medium) | Remainders, Statistics and Sets Problems hide tags

Bunuel

15 May 2020, 00:45

10

7

4,228

by: bumpbot

14 Apr 2022, 10:28

ER

Is the distance between exits 4 and 5 longer than 12 miles?

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

13 Apr 2022, 02:30

2

1,466

by: IanStewart

14 Apr 2022, 10:21

ER

What is the value of x^2 ? (1) y(2x + y) = 32 (2) (x + y)^2 = 36

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Apr 2022, 05:30

1

947

by: GMATWhizTeam

14 Apr 2022, 10:16