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

79,280

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

188,868

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

488,492

by: bb

29 Aug 2025, 13:27

ER

Is a > 85? (1) b > 75 (2) c > 95

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

21 Feb 2018, 21:51

4

6

3,148

by: Loser94

15 Jan 2019, 09:14

ER

If triangles ABC and CDE are each equilateral, what is the sum of the

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

21 Feb 2018, 21:49

15

5

3,011

by: CEdward

17 Feb 2021, 10:01

What is the number of female employees in Company X ?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

broall

21 Feb 2018, 01:55

11

2

14,204

by: bumpbot

18 Jul 2025, 14:04

ER

How many of the 60 applicants for a job passed neither the physical

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

21 Feb 2018, 01:13

1

5

2,877

by: rishabhmishra

22 Feb 2018, 00:50

ER

What is the value of 1/x + 1/y + 1/z ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

20 Feb 2018, 23:26

2

4

3,531

by: bumpbot

12 Mar 2023, 12:28

ER

A rectangular piece of carpet of 200 square yards is cut into two piec

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

20 Feb 2018, 23:23

4

2,690

by: rishabhmishra

21 Feb 2018, 23:40

ER

Line OP is drawn on the coordinate axes as shown. What is the value

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

20 Feb 2018, 23:21

1

2

1,349

by: rishabhmishra

21 Feb 2018, 23:30

ER

How many times does Mary get paid in a certain year X ?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Feb 2018, 09:12

3

2,443

by: bumpbot

04 Dec 2021, 10:22

ER

How long will it take machine M to fill an order for x widgets if the

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

19 Feb 2018, 23:20

15

6

4,943

by: bumpbot

02 Jul 2021, 08:35

ER

Which point, point P or point Q, is farther from the center of circle

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

19 Feb 2018, 22:50

1

1,398

by: varun4s

20 Feb 2018, 00:26

ER

What percent is x of y? (1) 3x = 5y (2) y is 60% of x.

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

19 Feb 2018, 22:49

1

1,573

by: varun4s

20 Feb 2018, 00:18

ER

The lengths of two sides of a certain triangle are 3 and 9. What is th

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

MathRevolution

19 Feb 2018, 01:25

14

5

5,447

by: bumpbot

31 Mar 2024, 09:04

ER

x gallon 40% alcohol solution is mixed with another y gallon10% alcoho

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

GMATinsight

25 Apr 2019, 20:46

28

7

5,758

by: bumpbot

28 Sep 2025, 00:16

ER

In the figure above, P and S are points on the x-axis. What is the ar

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

15 Feb 2018, 23:39

3

5

1,961

by: Hatakekakashi

16 Feb 2018, 00:46

ER

If the number of square units in the area of a circle is A and the nu

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

15 Feb 2018, 23:37

3

5

4,580

by: gvij2017

08 Nov 2019, 00:51

ER

If x and y are positive integers, is x > y ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

15 Feb 2018, 23:32

3

6

3,938

by: bumpbot

19 May 2020, 10:39

ER

If N and P denote the nonzero digits of a four-digit number NNPP, is

505-555 (Easy) | Multiples and Factors

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

Bunuel

15 Feb 2018, 23:30

3

2,704

by: bumpbot

07 Aug 2019, 03:09

What is the ratio x:y?

555-605 (Medium) | Algebra, Fractions and Ratios

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

amanvermagmat

15 Feb 2018, 23:20

1

2

1,485

by: pushpitkc

17 Feb 2018, 07:08

ER

If x, y, and z are the lengths of three sides of a triangle, is z > 8

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

15 Feb 2018, 08:58

1

1,951

by: amanvermagmat

15 Feb 2018, 22:30

ER

If p > 0, what percent is p of q? (1) q = 2p (2) p + q = 36

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

15 Feb 2018, 08:55

2

3

3,400

by: AnirudhaS

29 Jan 2022, 15:21

ER

Was Mark's average running speed for the first hour of his 26-mile ma

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

15 Feb 2018, 08:54

3

2,901

by: bumpbot

21 Mar 2023, 10:24

ER

What is the perimeter of a rectangle if the ratio of its width to its

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

15 Feb 2018, 08:50

7

4

6,154

by: bumpbot

23 Dec 2022, 13:04

ER

Mary, Paul, and Susan all played in a summer Softball league, and eac

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

15 Feb 2018, 08:48

1

2

1,324

by: US09

16 Feb 2018, 09:52

ER

Is p a positive number? (1) 5p is a positive number (2)-p is a negativ

Sub 505 (Easy) | Inequalities, Number Properties

Sub 505 (Easy) | Inequalities, Number Properties hide tags

Bunuel

15 Feb 2018, 08:47

1

1,609

by: ujjwal80

15 Feb 2018, 20:04

ER

Is 15 the average (arithmetic mean) of x, y, and 15?

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

15 Feb 2018, 08:46

3

2,818

by: MathRevolution

19 Feb 2018, 17:56

ER

What is the value of the positive integer k?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

MathRevolution

15 Feb 2018, 04:39

4

5

3,239

by: bumpbot

14 Jan 2021, 21:23

ER

Is x an integer? (1) x^3 is an integer (2) 3x is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amanvermagmat

15 Feb 2018, 03:45

15

5

6,866

by: bumpbot

06 Sep 2023, 00:37

ER

Is quadrilateral ABCD a square? (1) A = C = 90º (2) AB = AD

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

14 Feb 2018, 03:44

60

9

9,298

by: bumpbot

14 May 2023, 07:07

ER

Is triangle PQR a right triangle?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

13 Feb 2018, 23:05

1

1,715

by: ra5867

13 Feb 2018, 23:15

ER

Is A > B ? (1) A is positive. (2) (A + B)^2 is positive.

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

13 Feb 2018, 23:02

3

1,575

by: GMATinsight

18 Feb 2018, 05:33

ER

A rectangle is 40 inches long. What is its area? (1) Its perimeter

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

13 Feb 2018, 22:45

1

3

3,449

by: GMATinsight

18 Feb 2018, 05:37

ER

l, m, and h are straight lines with l||m. Is angle B equal to 90°?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

13 Feb 2018, 22:44

2

4

3,669

by: bumpbot

08 Mar 2020, 01:56

ER

John, Peter, and Paul together have ten marbles. If each has at least

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

13 Feb 2018, 22:42

2

4

3,560

by: varun4s

17 Feb 2018, 03:00

ER

Events E and F are independent. Is the probability that both events E

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

MathRevolution

13 Feb 2018, 01:38

41

4

7,250

by: bumpbot

19 Mar 2026, 03:28

ER

What is the length of the diagonal of a certain rectangle?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

13 Feb 2018, 01:20

1

1,457

by: amanvermagmat

13 Feb 2018, 02:44

ER

Is A > B? (1) AX > BX (2) X < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

13 Feb 2018, 01:17

2

4

2,738

by: energetics

20 Apr 2019, 18:26

ER

Is the average of ten integers greater than 10?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

13 Feb 2018, 01:16

1

5

2,504

by: ScottTargetTestPrep

20 Feb 2018, 17:17

ER

If the area of a rectangle is 20, what is its perimeter?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

13 Feb 2018, 01:16

2

5,235

by: amanvermagmat

13 Feb 2018, 02:53

ER

A triangle is inscribed in a circle. A point is randomly chosen inside

705-805 (Hard) | Geometry, Probability

705-805 (Hard) | Geometry, Probability hide tags

sandysilva

12 Feb 2018, 08:20

75

11

13,493

by: bumpbot

11 Feb 2026, 19:31

ER

Is x an even integer? (1) x^2 is divisible by 4 (2) x^4 is divisible

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

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

Bunuel

09 Feb 2018, 00:43

51

9

6,909

by: SatvikVedala

01 Sep 2024, 07:46

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

4,900

by: bumpbot

08 Apr 2022, 02:48

ER

If a certain machine produces bolts at a constant rate, how many

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

08 Feb 2018, 23:32

7

6

9,419

by: bumpbot

18 Oct 2024, 17:10

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

4,195

by: bumpbot

10 Apr 2022, 09:45

ER

If a^5+7a+2b+b^2 is even and a and b are integers, is

655-705 (Hard) | Algebra, Number Properties

655-705 (Hard) | Algebra, Number Properties hide tags

chetan2u

08 Feb 2018, 19:28

3

2

1,500

by: amanvermagmat

08 Feb 2018, 22:50

ER

In the figure above, a rectangle is divided into smaller rectangles

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

08 Feb 2018, 06:26

17

8

5,891

by: Bunuel

29 Nov 2020, 10:18

ER

Is ABCD a square? (1) AB is parallel to CD (2) ABCD is an equilateral

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

08 Feb 2018, 05:51

20

4

6,332

by: bumpbot

11 Oct 2024, 23:02

ER

What is the value of p?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

08 Feb 2018, 05:48

1

2

2,420

by: amanvermagmat

08 Feb 2018, 22:56

ER

What is the weight of one of three identical bricks?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

07 Feb 2018, 21:22

1

2

2,428

by: ash124

01 Sep 2021, 05:35

ER

If x and y are non-negative, is (x + y) greater than xy?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

07 Feb 2018, 21:21

11

6

6,410

by: bumpbot

06 Apr 2025, 04:41

ER

A, B, and C are three consecutive even integers (not necessarily in

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

07 Feb 2018, 21:19

6

3,301

by: bumpbot

24 Jan 2024, 12:48