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

78,652

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

188,477

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

487,869

by: bb

29 Aug 2025, 13:27

ER

Is positive integer x divisible by 24?

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

BabySmurf

23 Jan 2014, 13:50

113

10

21,787

by: rvgmat12

30 Jan 2022, 04:59

ER

Is |x + y| < |x| + |y|? (1) |x| ≠ |y| (2) |x – y| > |x + y|

555-605 (Medium) | Absolute Values, Inequalities

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

BabySmurf

05 Feb 2019, 04:35

80

8

9,073

by: bumpbot

04 Aug 2022, 00:53

ER

If ab < 7, is b < 1?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

BabySmurf

17 Jan 2014, 04:25

5

3

5,293

by: bumpbot

10 Aug 2023, 12:10

ER

In the xy plane, line x goes through the point (a,1) and lin

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

BabySmurf

04 Jan 2023, 05:31

101

10

13,745

by: Bunuel

23 Sep 2025, 08:33

ER

If positive integer y is equal to the sum of all the unique

655-705 (Hard) | Absolute Values, Number Properties

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

BabySmurf

23 Jan 2014, 13:59

49

10

8,019

by: bumpbot

23 Sep 2025, 14:52

ER

Of the shares of stock owned by a certain investor, 30

505-555 (Easy) | Algebra, Word Problems

505-555 (Easy) | Algebra, Word Problems hide tags

BabySmurf

25 Jan 2014, 02:16

190

7

55,306

by: bumpbot

28 Mar 2026, 07:47

ER

Does p^2 = q if p is a prime number?

655-705 (Hard) | Algebra, Number Properties

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

babusona

26 Apr 2016, 07:26

9

11

8,592

by: bumpbot

07 Sep 2020, 01:10

ER

What is the two-digit positive integer whose tens digit is a

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

babusona

08 Mar 2012, 08:57

30

5

10,963

by: bumpbot

28 Aug 2025, 09:14

ER

If A, B and C are digits and AB 0, what is the value of B?

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

babusona

31 Jan 2023, 12:55

84

11

20,831

by: Reetisha

18 Dec 2025, 22:53

ER

If a and b are positive numbers, what are the coordinates of

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

b14kumar

27 Jul 2014, 15:57

109

8

46,263

by: bumpbot

07 Oct 2025, 01:21

ER

In the rectangular coordinate system, lines m and n cross at

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

b00gigi

23 Sep 2013, 16:36

21

5

9,084

by: bumpbot

21 Mar 2023, 06:49

ER

A certain bread recipe calls for wheat, white flour, and oat

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

azule45

29 Oct 2010, 11:08

49

5

15,111

by: bumpbot

07 Jan 2026, 10:55

-3

In Country X and Country Y, lunch for the vast majority of high...

705-805 (Hard) | Non-Math Related

705-805 (Hard) | Non-Math Related hide tags

az168

25 Dec 2025, 02:48

8

2

1,150

by: Dream009

29 Dec 2025, 11:59

ER

Is |x| ≤ 4 ? |x + 2| + |x − 4| > 2|x − 1| |(x + 4)(x − 3)| > 8

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

Ayush1692

22 Mar 2018, 03:12

44

10

5,305

by: bumpbot

22 Oct 2024, 05:38

ER

Set S consists of 20 different positive integers. How many

505-555 (Easy) | Statistics and Sets Problems

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

axl169

10 Oct 2006, 09:04

22

9

15,172

by: bumpbot

10 Jul 2024, 22:29

ER

Is |x| < 1?

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

Aximili85

29 Aug 2012, 10:11

1

4

4,732

by: Bunuel

30 Aug 2012, 01:48

ER

M and N are two positive integers and each of them has 20 factors. If

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

axezcole

21 Apr 2019, 07:37

33

7

5,790

by: bumpbot

08 Jan 2025, 02:55

ER

If x is a positive integer, is x^2 - 1 divisible by 24?

705-805 (Hard) | Number Properties, Remainders

705-805 (Hard) | Number Properties, Remainders hide tags

axezcole

25 Apr 2019, 01:45

11

8

4,952

by: Bunuel

30 Apr 2025, 00:25

ER

In the figure above, ST=3. What is the length of RS?

Poor Quality

Poor Quality hide tags

Awli

26 Feb 2015, 11:24

6

4

2,801

by: KarishmaB

23 Mar 2015, 22:25

ER

In the figure above, is RS || PQ?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Awli

26 Feb 2015, 11:21

14

7

5,483

by: bumpbot

19 Mar 2019, 14:39

ER

Is x > 0 ? (1) x^3 < x^4 (2) x^3 < x^5

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Awli

13 Apr 2015, 10:54

13

6

3,933

by: bumpbot

22 Sep 2023, 19:50

ER

Is a > b^2 ? (1) a>b^4 (2) a> b^(1/2)

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Awli

08 Aug 2017, 04:08

35

10

4,569

by: bumpbot

23 Oct 2023, 16:04

ER

If y^c = y^d+1 , what is the value of y?

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

Awli

09 Dec 2018, 09:31

29

15

5,774

by: bumpbot

02 Oct 2024, 14:11

ER

Three employees, A, B and C, clean a certain conference room each day.

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

Awli

26 Feb 2015, 11:36

176

12

13,832

by: bumpbot

10 Mar 2026, 23:27

ER

Does the population of rats in a zoo double every day?

Poor Quality

Poor Quality hide tags

AweSome777

10 Jul 2019, 04:59

1

5

2,101

by: v12345

02 Aug 2021, 00:50

ER

What is the average speed of the car during its entire trip?

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

AweSome777

10 Jul 2019, 07:25

14

10

6,464

by: bumpbot

15 Aug 2025, 21:36

ER

Is xy > 7 ? (1) x + y = 7 (2) 1 x 3 and 2 y 4

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

avohden

02 Nov 2013, 00:40

3

2

3,663

by: avohden

05 Nov 2013, 22:42

ER

What is the value of b ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

avohden

22 Oct 2013, 22:00

5

3,063

by: Bunuel

01 Dec 2013, 07:21

ER

Is the number y between 0.3 and 0.6 ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

avohden

24 Oct 2013, 17:24

1

4

5,629

by: chetan2u

27 May 2016, 05:56

ER

Is xyz > 0 ? (1) xy + yz > 0 (2) xz > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

avohden

16 Nov 2013, 00:51

4

5,277

by: bumpbot

03 Apr 2019, 05:55

ER

At a furniture store, each chair sells for the same price an

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

avohden

09 Oct 2013, 18:17

2

5

3,441

by: Alvarito

29 Apr 2020, 20:03

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Is n^2 an even integer?

Poor Quality

Poor Quality hide tags

avohden

02 Nov 2013, 00:56

14

7

3,950

by: Bunuel

07 Jan 2021, 00:36

ER

Is the product of integers m and n odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

avohden

09 Oct 2013, 19:56

3

5

3,580

by: bumpbot

20 Jan 2021, 10:45

ER

Is ax = 6 - bx ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

avohden

24 Oct 2013, 17:35

5

7

4,358

by: bumpbot

02 Feb 2023, 03:40

ER

What is the value of xy ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

avohden

24 Oct 2013, 17:10

5

3

4,211

by: bumpbot

02 Feb 2023, 05:02

ER

If the length of Amanda's membership was rounded up to the

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

avohden

11 Oct 2013, 03:41

4

3,090

by: bumpbot

21 Sep 2023, 07:44

ER

If x^2 - y^2 = 27, what is the value of (x + y)^2 ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

avohden

02 Nov 2013, 00:47

27

9

12,803

by: bumpbot

05 Nov 2023, 04:51

ER

Is x^3 less than x ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

avohden

10 Oct 2013, 17:31

4

9

5,771

by: bumpbot

17 Jan 2024, 03:49

ER

How many of the 40 securities in a portfolio are domestic stocks?

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

avohden

09 Oct 2013, 16:48

6

5

3,633

by: bumpbot

01 Oct 2024, 02:31

ER

A health club charges an annual $10 renewal fee for all memb

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

avohden

02 Oct 2013, 10:10

22

13

6,659

by: bumpbot

05 Jan 2026, 02:24

ER

What is the average of numbers a and b?

555-605 (Medium) | Statistics and Sets Problems

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

AVINASH77

21 Apr 2016, 13:09

5

3

2,213

by: MathRevolution

25 Apr 2016, 06:22

ER

Is the product of 3p and 4 greater than 20?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

avi2crackgmat

04 Mar 2013, 03:29

7

5

7,747

by: bumpbot

10 Aug 2023, 23:21

ER

Given that P and Q are non-zero integers, is P/Q>(PQ)^2?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Avi077

18 Dec 2022, 01:59

3

1

1,713

by: chetan2u

19 Dec 2022, 05:12

ER

If the average (arithmetic mean) of four numbers is 10, how many of

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

AverageGuy123

27 Feb 2015, 21:22

21

7

15,062

by: bumpbot

03 Jan 2025, 14:13

ER

A stamp collection that has an appraised value of $600 consists of twi

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

averagedude23

10 Nov 2023, 10:26

86

6

14,911

by: KarishmaB

05 May 2025, 23:00

ER

Each piece of candy in a certain jar is either brown, red, or green.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

averagedude23

10 Nov 2023, 10:37

21

3

7,878

by: jmaxr

20 Jun 2025, 21:46

ER

A certain car averaged 20 miles per gallon of gasoline on a trip from

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

averagedude23

10 Nov 2023, 10:44

73

6

12,176

by: bumpbot

12 Nov 2025, 08:52

ER

The probability that event E occurs is 0.8 and the probability that

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

av1901

02 Nov 2022, 09:28

12

2

3,094

by: bumpbot

10 Feb 2026, 10:26

ER

Seven different numbers are selected from the integers 1 to

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

aurobindo

22 Jul 2014, 14:34

27

5

16,445

by: Bunuel

22 Jul 2014, 14:35

ER

If p, q, r, and s are non-zero numbers, is pr/qs > r/q?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Aurion

29 Aug 2014, 04:49

16

13

10,455

by: bumpbot

06 May 2024, 12:22