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

176

15

78,664

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

188,485

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

487,881

by: bb

29 Aug 2025, 13:27

ER

Is xy a multiple of 48? (1) x is a multiple of 4 (2) y is a multiple

505-555 (Easy) | Multiples and Factors

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

Bunuel

09 Aug 2019, 02:20

2

4

3,038

by: bumpbot

28 Apr 2022, 10:56

ER

If, for the 199192 academic year, Bill and his parents shared the ent

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

20 Apr 2022, 06:00

1

1,272

by: vivek1810971

28 Apr 2022, 09:15

ER

If a positive odd integer n has 8 positive factors, how many distinct

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

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

Bunuel

28 Apr 2022, 02:16

6

1

4,451

by: Nidzo

28 Apr 2022, 03:21

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

3,316

by: bumpbot

25 Apr 2022, 10:14

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

7,211

by: bumpbot

25 Apr 2022, 04:59

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

4,243

by: bumpbot

25 Apr 2022, 00:43

A solid rectangular block is made up of iron. If the iron weighs 25 gr

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

ktzsikka

05 Feb 2022, 05:56

9

2

2,469

by: vaibhav1221

25 Apr 2022, 00:40

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

1,327

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

2,018

by: WizakoBaskar

24 Apr 2022, 22:42

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

3,056

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

2,325

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

3,036

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

2,891

by: bumpbot

23 Apr 2022, 05:58

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

976

by: paulrahul

22 Apr 2022, 13:36

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

4,323

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

3,164

by: bumpbot

21 Apr 2022, 02:21

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

1,381

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

1,085

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

2,371

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

4,627

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

2,942

by: bumpbot

20 Apr 2022, 00:40

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

2,527

by: bumpbot

18 Apr 2022, 10:03

ER -1

Is x > 3? (1) |x + 3| + 1 > 4 (2) x^2 < 9

555-605 (Medium) | Absolute Values, Inequalities

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

GMATNinja

18 Apr 2022, 00:17

5

1

2,339

by: Archit3110

18 Apr 2022, 00:54

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

7,044

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

2,977

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

2,398

by: bumpbot

17 Apr 2022, 03:12

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

1,726

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

1,186

by: yashikaaggarwal

16 Apr 2022, 04:16

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

5,574

by: bumpbot

16 Apr 2022, 03:00

ER

What is the value of y? (1) w x = 65 (2) x + z = 115

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Apr 2022, 08:30

1

871

by: Gmt123

13 Apr 2022, 12:54

ER

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

605-655 (Medium) | Exponents, Inequalities

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

Bunuel

13 Apr 2022, 04:30

3

1

1,196

by: siglon

13 Apr 2022, 11:35

ER

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

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Apr 2022, 05:00

1

839

by: siglon

13 Apr 2022, 09:53

ER

How many thousands of gallons of water does a reservoir have?

505-555 (Easy) | Fractions and Ratios

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

Bunuel

30 Mar 2022, 02:30

4

2

2,267

by: stne

13 Apr 2022, 09:10

ER

What percent of x is 3/4? (1) x = 0.5y (2) y = 10

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

30 Mar 2022, 04:00

4

1

1,539

by: stne

13 Apr 2022, 08:14

ER

Of the 500 temperature records, 76% are less than or equal to 153 degr

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

30 Mar 2022, 04:29

1

1,423

by: stne

13 Apr 2022, 08:06

ER

What is the value of m - n/m^2 - n^2 = (1) m^2 n^2 = 40 (2) m + n =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Apr 2022, 06:00

1

975

by: thkkrpratik

13 Apr 2022, 06:11

ER

John, Aditi, and Karim are all stamp collectors. What is the ratio of

505-555 (Easy) | Fractions and Ratios

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

Bunuel

13 Apr 2022, 02:00

1

1,208

by: thkkrpratik

13 Apr 2022, 02:29

ER

If xy ≠ 0, what is the value of 1/x + 1/y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Nov 2017, 09:42

3

4

5,284

by: bumpbot

12 Apr 2022, 12:12

ER

If a > 0 and |a| |b|, is 2/(a+b) + 2/(a-b) = 1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

30 Mar 2022, 06:00

3

1

1,710

by: stne

12 Apr 2022, 07:55

ER

If points A, B and C lie on a circle with center O, what is the area

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

23 Aug 2018, 04:06

3

4

3,482

by: bumpbot

11 Apr 2022, 02:20

A circle with center O has a chord CD inside it, such that points C an

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

amanvermagmat

22 Jul 2018, 10:50

4

3

1,784

by: bumpbot

11 Apr 2022, 02:15

ER

If m and v are integers, what is the value of m + v?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

24 Feb 2017, 00:29

7

2

5,462

by: bumpbot

10 Apr 2022, 14:38

ER

What was the cost of a certain telephone call?

Sub 505 (Easy) | Algebra, Word Problems

Sub 505 (Easy) | Algebra, Word Problems hide tags

Bunuel

08 Feb 2018, 23:20

1

7

4,168

by: bumpbot

10 Apr 2022, 09:45

ER

p is an integer; n is an integer; and p/n is an integer. Is p/n odd?

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

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

Bunuel

08 Feb 2018, 23:40

8

6

4,863

by: bumpbot

08 Apr 2022, 02:48

If |x| > 5, is |x - 5| = 5 - x

505-555 (Easy) | Absolute Values, Inequalities

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

ezhilkumarank

07 Aug 2010, 17:57

16

6

5,390

by: bumpbot

07 Apr 2022, 07:46

ER

If x is an integer, is y an integer? (1) (4x + 4y)/2 = 6 (2) (3x +

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

06 Apr 2022, 01:30

3

1

1,231

by: paulrahul

06 Apr 2022, 04:26

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

2,043

by: TarunKumar1234

05 Apr 2022, 19:55

ER

If Bob, working alone, can paint a certain room in 3 hours, how long

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

30 Mar 2022, 03:30

2

3,487

by: PyjamaScientist

03 Apr 2022, 23:31

ER

What are the angles of triangle XYZ? (1) One of the interior angles

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

15 Mar 2022, 01:30

3

1

1,675

by: yashikaaggarwal

02 Apr 2022, 03:31

ER

Is ABC an isosceles triangle? (1) AD = DC (2) The area of ABD

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

25 Mar 2022, 01:30

1

3

2,675

by: Nidzo

01 Apr 2022, 08:27