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

79,259

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

188,856

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

488,482

by: bb

29 Aug 2025, 13:27

ER

If P and Q are positive integers, what is the number of factors of X?

605-655 (Medium) | Multiples and Factors

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

Mo2men

23 Jun 2019, 10:08

8

7

3,834

by: bumpbot

16 Nov 2022, 07:13

If m and n are two positive integers, then what is the value of mn ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

prashanths

24 Jun 2019, 05:29

3

4

3,810

by: Staphyk

24 Jun 2019, 06:19

If g is the greatest common factor of n and k+8, where n and k are pos

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

rohan2345

24 Jun 2019, 07:25

3

1,758

by: bumpbot

27 Aug 2025, 01:15

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If x and y are distinct integers between 1 and 30, inclusive

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

TheUltimateWinner

24 Jun 2019, 11:37

1

1,284

by: IanStewart

24 Jun 2019, 13:19

LCM of two natural numbers x and y is 161, and x is greater than 1.

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

nick1816

25 Jun 2019, 01:48

10

6

2,164

by: bumpbot

26 May 2025, 14:56

ER

At a particular moment, a restaurant has x biscuits and y patron(s), w

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MSIMBA

25 Jun 2019, 09:41

1

3

1,326

by: SupreetReddy

10 Jul 2019, 02:22

ER

Will at least three identical cubes fit inside a cylindrical shipping

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

payalkhndlwl

25 Jun 2019, 23:02

23

7

6,145

by: bumpbot

06 Feb 2023, 07:48

Is (50 + 5n)/n^2 an integer

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

prashanths

26 Jun 2019, 04:38

2

1,565

by: utkarshg97

26 Jun 2019, 06:06

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Is m a multiple of n? 1) 2m is a multiple of n 2) n divided

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TheUltimateWinner

27 Jun 2019, 10:09

3

5

1,382

by: Arro44

30 Jun 2019, 11:53

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If y ≠ 0, is x = -1 ? (1) x = y/|y| (2) |x| = -x

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

GMATBusters

30 Jun 2019, 03:57

9

4,090

by: QuantMadeEasy

27 Nov 2019, 02:44

Is the highest common factor of (a,b) less than 10? 1) HCF (a,64)=4 2)

655-705 (Hard) | Multiples and Factors, Number Properties

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

TheUltimateWinner

30 Jun 2019, 08:36

5

2

1,504

by: bumpbot

09 May 2024, 18:23

ER

If parallelogram ABCD has a perimeter of 12 units and ∠ADC = 120

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

firas92

30 Jun 2019, 12:36

17

5

3,630

by: bumpbot

24 Aug 2023, 21:48

ER

If cb < ab < 0, is |c - a| = |c| - |a|?

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

01 Jul 2019, 08:00

68

12

10,442

by: bumpbot

29 May 2024, 08:43

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Three positive integers a, b and c leave the same remainder y

805+ (Hard) | Remainders

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firas92

01 Jul 2019, 12:20

19

5

3,561

by: bumpbot

17 Jul 2025, 04:49

ER

Is x a positive number?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

CAMANISHPARMAR

01 Jul 2019, 23:00

1

2,202

by: IanStewart

02 Jul 2019, 05:49

All the three sides of a room are integer values in meters. What is th

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Harshita6789

01 Jul 2019, 23:42

5

3

1,807

by: saukrit

02 Jul 2019, 12:03

ER

If two sets of numbers, P and Q, have the same number of elements, is

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Sajjad1994

02 Jul 2019, 03:09

5

1

4,054

by: IanStewart

02 Jul 2019, 06:03

ER

What is the area of triangle ABC above, with side lengths x,y, and z?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

02 Jul 2019, 08:00

24

11

7,960

by: bumpbot

05 Apr 2022, 21:55

ER

Out of a certain number of passengers on a plane, some passengers

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Abhi077

02 Jul 2019, 23:05

2

1

1,633

by: IanStewart

03 Jul 2019, 05:30

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If xy > 0, is y/x + x/y > 2?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

03 Jul 2019, 08:00

41

7

7,035

by: bumpbot

25 Jul 2022, 20:45

If x and y are positive integers, is x odd? 1) y is odd 2) 2x-y+x^2=y^

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

TheUltimateWinner

03 Jul 2019, 08:50

12

2

2,226

by: bumpbot

29 May 2024, 23:15

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Is y < z ? (1) y + z = 1 (2) y^2 < z^2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

GeorgeKo111

03 Jul 2019, 09:25

21

9

5,389

by: bumpbot

08 Feb 2024, 01:22

ER

If x,y belong to set of integers, is x^y even?

655-705 (Hard) | Exponents, Number Properties

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

GMATBusters

04 Jul 2019, 06:24

6

7

1,499

by: lacktutor

05 Jul 2019, 13:14

ER

In a sprint race, a man has to run two distances, D1 and D2, to comple

605-655 (Medium) | Distance and Speed Problems

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

Bunuel

04 Jul 2019, 08:00

19

8

7,307

by: bumpbot

29 Sep 2025, 06:46

ER

If t, p, and q are different positive integers, how many positive inte

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

04 Jul 2019, 08:00

36

6

6,552

by: bumpbot

19 Dec 2024, 07:07

ER

What is the value of #, if # represents the tens digit of an integer K

705-805 (Hard) | Multiples and Factors

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

Sherel

28 Jun 2021, 02:26

8

5

2,872

by: bumpbot

13 Mar 2023, 01:08

ER

What is the highest power of 3 in the value of X! ?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

05 Jul 2019, 08:00

64

11

10,018

by: bumpbot

17 Oct 2024, 10:58

ER

The table above shows the results of a survey of 100 voters who each r

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

Nayyar29

12 Jun 2024, 23:55

31

3

5,552

by: bumpbot

05 Jan 2026, 09:53

ER

Are a and b co-prime? 1) LCM (a,b)=ab 2) a-b is prime

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

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

TheUltimateWinner

06 Jul 2019, 09:02

2

1,782

by: IanStewart

07 Jul 2019, 05:00

ER

Is a/b > c? (1) a> bc (2) b > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

JayPatadiya

07 Jul 2019, 07:50

1

4

1,912

by: JayPatadiya

07 Jul 2019, 23:15

ER

What is range of the six positive integers: 1, p, 12, q, 15, r?

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

08 Jul 2019, 08:00

36

8

8,893

by: Bunuel

27 Apr 2025, 09:41

ER

When 420 is divided by positive integers j and k, the remainders are x

805+ (Hard) | Multiples and Factors, Remainders

805+ (Hard) | Multiples and Factors, Remainders hide tags

BrentGMATPrepNow

08 Jul 2019, 13:38

14

4

3,000

by: bumpbot

31 Jul 2024, 21:02

How many integer values of x satisfy the equation |x-3|+|x-k|<c?

555-605 (Medium) | Absolute Values, Inequalities

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

Kinshook

09 Jul 2019, 01:53

2

4

1,551

by: aarkay

11 Jul 2019, 13:51

ER

If the positive integer x has 8 positive factors, what is the value of

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

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

Bunuel

09 Jul 2019, 08:00

48

15

10,618

by: bumpbot

07 Aug 2023, 19:38

What is the remainder when m is divided by 4? 1) HCF of m and m+16 is

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

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

TheUltimateWinner

09 Jul 2019, 10:03

6

1,076

by: firas92

10 Jul 2019, 00:11

ER

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

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AweSome777

10 Jul 2019, 04:59

1

5

2,109

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

15

10

6,491

by: bumpbot

15 Aug 2025, 21:36

ER

A group of 7 students took a test. In the test, one student scored 100

655-705 (Hard) | Statistics and Sets Problems

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

RJ7X0DefiningMyX

10 Jul 2019, 07:45

11

3

5,016

by: bumpbot

18 Aug 2024, 09:20

ER

Of the 600 students in a class, each French speaker also speaks German

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

10 Jul 2019, 08:00

38

16

9,887

by: bumpbot

22 Jul 2025, 12:13

ER

What is the value of |x-5|?

555-605 (Medium) | Absolute Values, Algebra

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

Kinshook

10 Jul 2019, 22:45

9

2

2,524

by: ScottTargetTestPrep

08 Nov 2022, 18:42

If x is an integer, What is the value of |x+5|+ |x-3|?

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

Kinshook

10 Jul 2019, 22:53

39

8

4,674

by: bumpbot

08 Mar 2022, 05:37

ER

In the figure to the right, what is the area of the triangle?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

11 Jul 2019, 00:29

3

1,300

by: abhishekdadarwal2009

11 Jul 2019, 01:06

ER

What is the value of x – y? (1) x + y = 3y – x (2) x + y = x^3 + y^3

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Jul 2019, 00:32

3

1,558

by: Palladin

11 Jul 2019, 05:11

ER

If x ≠ –1 and y ≠ ±1, then what is the value of (xy − x)/((x + 1)(y −

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Jul 2019, 00:41

1

3

1,276

by: bumpbot

17 Nov 2020, 16:13

ER

Did Incumbent I get over 50% of the vote? (1) Challenger C got 49% of

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

11 Jul 2019, 00:44

1

1,023

by: Kinshook

11 Jul 2019, 00:51

ER

Is p > q ? (1) 0 < p < 0.5 (2) 0.4 < q < 1

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

11 Jul 2019, 00:46

3

2,413

by: Kinshook

31 Jul 2019, 10:59

ER

What is the remainder if the positive integer y is divided by 3?

Sub 505 (Easy) | Multiples and Factors +2 tags

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Bunuel

11 Jul 2019, 00:47

3

3,155

by: BrentGMATPrepNow

12 Mar 2020, 07:40

ER

How many students are enrolled in Math? (1) There are 72 students enr

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

11 Jul 2019, 00:55

2

5,891

by: vinayakvaish

11 Jul 2019, 03:01

ER

If ◊ is a function, is the value of u◊ v less than 9? (1) x ◊ y = xy f

Sub 505 (Easy) | Functions and Custom Characters

Sub 505 (Easy) | Functions and Custom Characters hide tags

Bunuel

11 Jul 2019, 01:10

2

2,829

by: Archit3110

11 Jul 2019, 10:30

ER

If Scott is 5 years older than Kathy, how old is Scott? (1) Seven year

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

11 Jul 2019, 01:22

1

3

3,358

by: bumpbot

01 May 2021, 20:37