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

78,870

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,614

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

488,058

by: bb

29 Aug 2025, 13:27

ER

If x^2 + 12x − k = 0, is x = 4? (1) (x + 16) is a factor of x^2 + 12x

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

16 Mar 2021, 01:30

16

6

2,389

by: bumpbot

22 Mar 2022, 10:11

What is x% of y? (1) x% more than y is 69 (2) x% less than y is 51

505-555 (Easy) | Arithmetic, Percent and Interest Problems

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

amanvermagmat

05 Mar 2018, 04:58

14

4

3,390

by: bumpbot

22 Mar 2022, 18:19

ER

Line l in the xy- coordinate system passes through the point ( a,b) wh

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Turkish

01 Mar 2015, 13:54

10

4

3,299

by: bumpbot

22 Mar 2022, 21:02

ER

In Quadrilateral WXYZ, is XY perpendicular to YZ?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

13 Nov 2019, 02:15

6

7,396

by: bumpbot

23 Mar 2022, 03:11

ER

If a = 3bc and abc ≠ 0, what is the value of c ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

09 Mar 2020, 05:06

7

4

7,057

by: bumpbot

23 Mar 2022, 04:39

ER

What is the value of x ? (1) 12x + 4y = 4(21 + y) (2) y = 12

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Mar 2022, 03:00

1

1,310

by: BrentGMATPrepNow

23 Mar 2022, 08:10

ER

Is positive integer m odd? (1) m = 2k + 1, where k is an integer.

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

23 Mar 2022, 09:00

1

1,714

by: Nefertiti9

23 Mar 2022, 09:31

ER

What is the area of right triangle ABC ?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

29 Jul 2020, 03:23

14

7

3,013

by: bumpbot

23 Mar 2022, 10:58

ER

If a^2 is not equal to b^2, what is the value of a-b - a^2 - b^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

23 Mar 2022, 08:00

1

1,246

by: Nefertiti9

23 Mar 2022, 11:27

ER

When an object is dropped from a building, its height above the ground

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

23 Mar 2022, 06:30

1

2,170

by: JerryAtDreamScore

23 Mar 2022, 14:12

ER

A certain box contains only red balls and green balls. If one ball is

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

Bunuel

23 Mar 2022, 05:00

1

2,350

by: JerryAtDreamScore

23 Mar 2022, 14:18

ER

How many students does the Gotham City School of Business enroll each

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

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

Bunuel

23 Mar 2022, 04:30

1

1,501

by: JerryAtDreamScore

23 Mar 2022, 14:21

ER

The average (arithmetic mean) height of five of Peters friends is 70

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

23 Mar 2022, 03:30

1

1,621

by: JerryAtDreamScore

23 Mar 2022, 14:23

ER

Is x > y ? (1) y^2 < z^2 < x^2 (2) z < x

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

22 Mar 2022, 01:30

6

3

2,332

by: JerryAtDreamScore

23 Mar 2022, 14:42

ER

What is the area of triangle EBC? (1) The area of ΔAED is 16. (2) Th

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

08 Apr 2021, 11:00

8

2

2,489

by: rvgmat12

24 Mar 2022, 00:25

ER

A bag contains only 3 different colours and atleast one ball of red

655-705 (Hard) | Probability, Word Problems

655-705 (Hard) | Probability, Word Problems hide tags

chetan2u

13 Feb 2017, 19:33

16

7

4,528

by: bumpbot

24 Mar 2022, 01:28

ER

If a ≠ b, what is the value of a + b?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

21 Oct 2019, 23:33

3

5,266

by: Hoozan

24 Mar 2022, 01:46

ER

In the diagram below, PQR is a triangle, right-angled at Q. A point S

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

23 Jul 2017, 23:22

17

5

4,591

by: bumpbot

24 Mar 2022, 02:09

ER

If y^k/y^5k = m, what is k?

805+ (Hard) | Exponents

805+ (Hard) | Exponents hide tags

Bunuel

03 Sep 2017, 06:21

50

15

5,941

by: bumpbot

24 Mar 2022, 03:34

ER

Is R/S an integer, if R and S are non-zero

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

chetan2u

12 Apr 2016, 21:05

7

3

2,596

by: bumpbot

24 Mar 2022, 06:23

ER

Q1, Q2, Q3, …, Qn is a sequence of n consecutive multiples of positive

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

17 Jul 2020, 01:58

15

9

4,190

by: bumpbot

24 Mar 2022, 14:11

ER

If line A is parallel to line B, what is the slope of line B?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

29 Aug 2018, 03:58

4

2,637

by: bumpbot

24 Mar 2022, 19:20

ER

Is the slope of line z positive ? (1) line m is perpendicular to line

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Bunuel

25 Feb 2020, 03:21

1

4

2,748

by: bumpbot

24 Mar 2022, 19:21

ER

Is point (3, 4) on line K? 1) Line K crosses the Y-axis at (0.5) 2) Th

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Russ19

07 May 2020, 11:48

13

5

2,512

by: bumpbot

24 Mar 2022, 19:22

ER

Does line l have a negative slope? 1) The line l passes through (-1, -

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

TheUltimateWinner

08 Aug 2020, 21:34

4

3

2,152

by: bumpbot

24 Mar 2022, 19:23

ER

If a^2 = b^2 = 25, what is the value of a + b? (1) a - b = 0 (2) ab =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Mar 2021, 01:30

9

5

4,059

by: bumpbot

24 Mar 2022, 20:56

ER

If x + y + z = 8 and 3x + 2y + 4z = 25, what is the value of z?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Hoozan

24 Mar 2022, 23:32

2

1,381

by: Hoozan

24 Mar 2022, 23:46

ER

In the diagram above, O is the center of the circle, DC = a and DO = b

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

25 Mar 2022, 01:30

1

2,521

by: Nidzo

25 Mar 2022, 03:05

ER

If a and b are positive integers, a > b, is 3^a – 3^b divisible by 13?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

Russ19

26 Mar 2020, 09:07

7

4

2,876

by: bumpbot

25 Mar 2022, 04:13

ER

Is a > b? (1) 6 + a/3 = b 8 (2) 9b^2 16

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

29 Apr 2016, 02:47

3

4

2,661

by: bumpbot

25 Mar 2022, 10:37

ER

Is a^3 - 3 an integer? (1) a^2 is an integer (2) a^6 is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Hoozan

25 Mar 2022, 05:49

1

2,060

by: JerryAtDreamScore

25 Mar 2022, 14:51

ER

If k = 20x + 50y and x + y = 1, is k < 35? (1) y > 1/2 (2) y > x

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

21 Mar 2022, 05:35

7

1

1,176

by: chetan2u

26 Mar 2022, 00:06

ER

Is y a positive number? (1) 2x + y > 27 (2) x – 3y < 24

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

13 Feb 2021, 09:13

9

6

4,861

by: bumpbot

27 Mar 2022, 00:20

ER

While on a straight road, Car C and Car D are traveling at different c

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

30 Aug 2019, 06:24

4

3

2,260

by: bumpbot

27 Mar 2022, 03:10

ER

If a certain animated short film consists of a total of 21,600 frames

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

Bunuel

29 Mar 2017, 04:59

5

2

3,806

by: bumpbot

27 Mar 2022, 03:12

ER

Was Rylon’s average speed greater than 55 miles per hour? (1) Rylon dr

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

Bunuel

17 Apr 2018, 05:30

2

3

2,522

by: bumpbot

27 Mar 2022, 03:15

ER

Joe and Bill drove separate cars along the entire length of a certain

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

05 May 2017, 03:48

6

4

2,967

by: bumpbot

27 Mar 2022, 03:16

ER

How many 360-degree rotations did a bicycle wheel make while rolling

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

Mbawarrior01

15 Jul 2016, 03:41

5

3,623

by: bumpbot

27 Mar 2022, 03:27

ER

Is |x| + |y| = 0?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

Warlock007

29 Jul 2016, 00:56

21

18

10,285

by: bumpbot

27 Mar 2022, 04:18

ER

Is xyz > 0 ? (1) (x - 3)(y - 3) > 0 (2) z > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

SelimAIUB

27 Mar 2022, 08:11

9

3

1,693

by: Kinshook

27 Mar 2022, 10:44

ER

A circle in a coordinate plane has a center at point A and a diameter

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

17 Jun 2015, 05:54

7

6,336

by: bumpbot

28 Mar 2022, 03:36

ER

give n is a positive integer, what is the reminder when 3^n is divided

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Turkish

01 Feb 2015, 15:42

6

4

3,233

by: bumpbot

28 Mar 2022, 08:10

ER

In his first year of employment, Mr. Downing earned $20,000. How much

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

31 Jul 2019, 10:11

3

1,915

by: bumpbot

28 Mar 2022, 11:10

ER

What is the value of x given that |x - y| = |x - z| ?

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

Bunuel

09 Jul 2020, 03:10

20

7

3,801

by: bumpbot

28 Mar 2022, 13:24

ER

Is v < 0? (1) uvu > 0 (2) v^4 < v

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

06 Jul 2020, 02:02

18

12

4,415

by: bumpbot

28 Mar 2022, 13:50

ER

What is the value of x? (1) (x^2+3)^2 - 11(x^2+3) + 28 = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 Mar 2022, 01:30

2

1,331

by: mdsaddamforgmat

29 Mar 2022, 00:40

ER

If m < 0, is n < 0 ? (1) m = n - 3 (2) m^n = k, where k > 0

605-655 (Medium) | Exponents, Inequalities

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

Bunuel

21 Mar 2022, 05:43

2

1

1,338

by: stne

29 Mar 2022, 03:39

ER

If h1 and h2 are the number of households and t1 and t2 are the number

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

01 Nov 2015, 09:16

4

3

2,786

by: bumpbot

29 Mar 2022, 11:51

ER

Derek's cell phone bill shows total minutes used for each of two categ

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

23 Feb 2022, 09:00

1

1,334

by: shivaniilall

29 Mar 2022, 14:13

ER

What is the value of t? (1) t(t - 1)^2 = 4t (2) t is an integer.

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

30 Mar 2022, 02:00

3

1

1,576

by: PyjamaScientist

30 Mar 2022, 02:44