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

79,093

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

188,734

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

488,304

by: bb

29 Aug 2025, 13:27

ER

Is it true that a > b ? (1) 3a > 5b (2) –a < –b

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

14 Mar 2017, 02:59

2

8

2,384

by: origen87

06 Jun 2017, 00:52

ER

If xy > 3x – xy, is y > 1? (1) y > 1.5 (2) x > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

14 Mar 2017, 02:59

3

4

1,757

by: chetan2u

16 Jul 2018, 06:02

ER

If p and j are integers, is tp > tj?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 Mar 2017, 02:58

2

2,508

by: BrentGMATPrepNow

29 Aug 2021, 08:19

ER

Is m ≠ n ? (1) (m – n)(m + n) < 0 (2) |m + n| > m + n

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

14 Mar 2017, 02:57

10

6

3,610

by: chetan2u

08 Jun 2021, 00:43

ER

Is 1/(a-b) < b - a?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

14 Mar 2017, 02:57

2

2,297

by: KrishnakumarKA1

15 Mar 2017, 04:37

ER

There are 1,280 books at a library. Everyone borrows these books at le

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

BillyZ

13 Mar 2017, 23:25

18

9

5,617

by: bumpbot

22 Oct 2025, 13:11

ER

Is x greater than y?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Mar 2017, 10:45

8

5

5,224

by: bumpbot

16 Dec 2018, 07:04

ER

Bruce, John, Linda, and Mark stand, in that order, in a straight line.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Sajjad1994

13 Mar 2017, 10:41

2

1

2,454

by: mikemcgarry

15 Mar 2017, 16:04

ER

Is it true that a > b ? (1) a + 3 > b – 1 (2) a > |b|

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

13 Mar 2017, 08:21

2

6

1,918

by: coolkl

22 Mar 2017, 15:32

ER

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

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

13 Mar 2017, 08:20

32

6

6,303

by: bumpbot

18 May 2022, 11:59

ER

If s and t are integers, is ps > pt?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Mar 2017, 08:20

2

1,854

by: mbaORnoMBA

13 Feb 2019, 23:55

ER

If m, s are the average and standard deviation of integers a, b, c

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

ashwink

12 Mar 2017, 20:49

29

5

9,434

by: pappal

11 Nov 2025, 13:02

ER

If n and m are integers, is bn > bm?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

11 Mar 2017, 03:44

9

3,651

by: bumpbot

29 Jul 2021, 16:28

ER

If a group of 5 craftsmen takes 3 hours to finish a job

Sub 505 (Easy) | Work and Rate Problems

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

HKD1710

10 Mar 2017, 23:40

17

7

6,673

by: Bunuel

23 Mar 2025, 02:48

ER

Is number x between 0.2 and 0.5 ? (1) 300x > 54 (2) 900x < 360

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

10 Mar 2017, 07:04

2

1,330

by: rohit8865

10 Mar 2017, 08:05

ER

Is xy < 1 ? (1) x > 1 and y < 1 (2) 2x – y > 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

10 Mar 2017, 07:00

12

4

3,144

by: bumpbot

04 Jan 2024, 04:09

ER

Is x positive? (1) 3x^2 > x (2) xy > y

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

10 Mar 2017, 04:05

1

1,332

by: nailin16

10 Mar 2017, 04:35

ER

Is m ≠ n ? (1) m + n > 0 (2) m < 2n

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

10 Mar 2017, 04:00

2

1,659

by: Mo2men

11 Mar 2017, 05:33

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Is x + y > 6? (1) x + 2y > 8 (2) 2x + y > 8

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

vikasp99

10 Mar 2017, 02:47

6

3

3,648

by: bumpbot

11 Feb 2024, 00:45

ER

For integers x and y, if x<a<2 and -2<b<y, is 1 contained in the range

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

BillyZ

09 Mar 2017, 22:41

6

3

2,299

by: bumpbot

14 Jun 2019, 08:40

ER

At a hospital, babies are born every day for a certain number of days.

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

BillyZ

09 Mar 2017, 22:39

27

9

5,801

by: Ahmed31

13 May 2023, 00:44

There is a company X that does not elect employees who are under 20 ye

Poor Quality

Poor Quality hide tags

BillyZ

09 Mar 2017, 22:38

10

7

3,170

by: bobby200

04 Apr 2017, 07:26

ER

Is 1/s=(s^2)*(t/u)?

555-605 (Medium) | Algebra, Arithmetic

555-605 (Medium) | Algebra, Arithmetic hide tags

BillyZ

09 Mar 2017, 19:10

15

10

5,686

by: bumpbot

17 Sep 2024, 04:36

ER

Is Quadrilateral ABCD above a square?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

09 Mar 2017, 02:33

3

5

5,043

by: Nunuboy1994

12 Mar 2017, 21:31

ER

Line DB divides Rectangle ABCD into two equal triangles. Is Angle ABD

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

09 Mar 2017, 02:25

15

6

7,149

by: bumpbot

19 Apr 2023, 04:53

ER

If b and c do not equal 0, is a=1/b+1/c ? (1)a is an integer such that

605-655 (Medium) | Algebra, Inequalities

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

BillyZ

08 Mar 2017, 23:54

16

3

4,331

by: bumpbot

24 Dec 2022, 04:50

ER

Is ab positive?

Poor Quality

Poor Quality hide tags

ashwink

08 Mar 2017, 06:04

4

8

6,409

by: ScottTargetTestPrep

15 Mar 2017, 16:24

ER

Does 3^(r + s) = 27^6 ? (1) r s = 8 (2) 5r = 13s

555-605 (Medium) | Algebra, Exponents

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

Sajjad1994

23 Apr 2023, 02:04

34

11

7,366

by: Bunuel

23 Apr 2023, 02:21

ER

If the average (arithmetic mean) of set A is 10,000 and the average (a

555-605 (Medium) | Statistics and Sets Problems

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

MathRevolution

08 Mar 2017, 01:13

2

3

2,351

by: MathRevolution

10 Mar 2017, 03:11

ER

What is the hundredths digit in the decimal representation of a certai

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

BillyZ

07 Mar 2017, 19:14

21

3

6,421

by: bumpbot

19 Jul 2024, 23:22

ER

Is x>0 ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

BillyZ

11 May 2017, 02:34

13

14

6,460

by: bumpbot

21 Jul 2025, 03:11

ER

If m and n are positive integers, then is p equal to product of m and

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

vikasp99

07 Mar 2017, 07:06

4

2

1,848

by: bumpbot

18 Oct 2022, 12:12

ER

Is m divisible by n?

555-605 (Medium) | Multiples and Factors

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

vikasp99

07 Mar 2017, 03:37

4

2

1,717

by: ScottTargetTestPrep

09 Mar 2017, 17:18

ER

Is a positive integer n greater than 1 divisible by 2?

505-555 (Easy) | Multiples and Factors

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

MathRevolution

07 Mar 2017, 01:02

2

6

2,451

by: bumpbot

16 Dec 2020, 19:31

ER

Is (3x + 8)/(x + 2) an integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

06 Mar 2017, 09:56

6

7

7,180

by: bumpbot

24 Jun 2024, 13:46

ER

2x – y =

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

vikasp99

06 Mar 2017, 05:08

2

10

3,417

by: bumpbot

09 Jun 2024, 19:35

ER

What is the perimeter of a certain right triangle?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

MathRevolution

06 Mar 2017, 01:13

3

6

1,984

by: MathRevolution

09 Sep 2017, 21:29

How is Bill related to Betty?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

ashwink

05 Mar 2017, 00:14

1

2

5,283

by: bumpbot

19 Sep 2025, 11:41

How much is 20 percent of a certain number a ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

vikasp99

04 Mar 2017, 00:29

3

2

9,473

by: bumpbot

08 Mar 2021, 21:29

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

vikasp99

11 Jul 2019, 00:14

1

2

1,997

by: KrishnakumarKA1

04 Mar 2017, 05:27

ER

What is the value of x ?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

vikasp99

02 Mar 2017, 23:04

4

1,904

by: KrishnakumarKA1

04 Mar 2017, 05:38

ER

What is the value of l + 2t ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

vikasp99

02 Mar 2017, 22:47

1

2,988

by: mikemcgarry

07 Mar 2017, 17:31

ER

Carol and Joe went apple picking. Who picked more apples?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Sajjad1994

02 Mar 2017, 05:58

4

2,799

by: JeffTargetTestPrep

06 Mar 2017, 18:17

Triangles ABC and DEF are similar right triangles. If the hypotenuse

805+ (Hard) | Algebra, Geometry

805+ (Hard) | Algebra, Geometry hide tags

giobas

01 Mar 2017, 11:41

55

6

9,806

by: gmatophobia

18 Nov 2022, 23:08

ER

In the figure above, DE parallels BA, and DF parallels CA. What is the

705-805 (Hard) | Fractions and Ratios, Geometry

705-805 (Hard) | Fractions and Ratios, Geometry hide tags

diota2004

01 Mar 2017, 09:59

13

4

2,310

by: bumpbot

18 Aug 2023, 21:58

ER

Racing Car A and Racing Car B were driven a distance of 1 mile in oppo

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

duahsolo

01 Mar 2017, 08:53

15

3

2,793

by: bumpbot

02 Mar 2026, 04:47

ER

On a soccer team, one team member is selected at random to be the goal

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

vikasp99

01 Mar 2017, 06:29

9

4

3,406

by: bumpbot

30 Mar 2025, 22:06

ER

How many in a group are women with blue eyes

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

vikasp99

01 Mar 2017, 06:25

1

3

2,931

by: bumpbot

25 Oct 2021, 01:41

ER

If a salesman received a commission of 3% of the sales

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ashwink

01 Mar 2017, 05:51

9

2

17,739

by: bumpbot

18 Sep 2025, 17:19

ER

J and K are positive numbers. Is J/K > 1?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

vikasp99

01 Mar 2017, 03:27

1

2

2,083

by: rohit8865

01 Mar 2017, 11:47