GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

79,904

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

858

24

189,023

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,740

by: bb

29 Aug 2025, 13:27

ER

PQ and QP represent two-digit numbers having P and Q as their digits.

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

Bunuel

28 Jul 2017, 01:21

22

5

11,449

by: bumpbot

05 Jan 2025, 23:41

ER

If J, S, and V are points on the number line, what is the distance bet

505-555 (Easy) | Arithmetic

505-555 (Easy) | Arithmetic hide tags

Bunuel

31 Dec 2013, 07:12

49

5

20,848

by: bumpbot

18 Dec 2024, 06:59

ER

If # represents one of the operations +,- and *, is a #

555-605 (Medium) | Arithmetic, Functions and Custom Characters

555-605 (Medium) | Arithmetic, Functions and Custom Characters hide tags

1, 2

zisis

19 Sep 2010, 16:09

52

20

20,909

by: bumpbot

17 Dec 2024, 04:55

Soni and Misha are exchanging stamps with each other. At the start, So

805+ (Hard) | Arithmetic, Word Problems

805+ (Hard) | Arithmetic, Word Problems hide tags

amanvermagmat

05 Aug 2018, 05:31

6

2

1,886

by: bumpbot

12 Dec 2024, 23:26

ER

In the multiplication problem above, each of the symbols ⋄, △, and •

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

Bunuel

20 Dec 2015, 04:44

5

3

5,161

by: Bunuel

11 Dec 2024, 01:30

Which school out of school A and school B has greater number of boys?

605-655 (Medium) | Arithmetic, Fractions and Ratios

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

amanvermagmat

27 Jun 2018, 22:08

4

3

2,408

by: bumpbot

17 Nov 2024, 22:05

There are three types of Chandeliers hung in a party hall: A, B and C.

805+ (Hard) | Arithmetic, Min-Max Problems

805+ (Hard) | Arithmetic, Min-Max Problems hide tags

amanvermagmat

18 May 2018, 11:48

28

5

4,576

by: bumpbot

09 Nov 2024, 07:43

ER

If x, y, and z are three-digit positive integers, and if x = y + z

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

ChiranjeevSingh

06 May 2020, 00:53

5

2

3,650

by: bumpbot

05 Nov 2024, 13:25

ER

How many of the numbers x, y, and z are positive if each of

655-705 (Hard) | Arithmetic, Number Properties

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

Carcass

12 Jun 2013, 03:50

18

9

14,650

by: bumpbot

29 Oct 2024, 23:37

ER

What is the average of ten numbers? (1) Nine of the numbers sum to 45

Sub 505 (Easy) | Arithmetic

Sub 505 (Easy) | Arithmetic hide tags

Bunuel

10 Oct 2019, 02:09

6

3

3,916

by: bumpbot

23 Oct 2024, 10:24

ER

The symbol Ω represents one of the following operations: add

555-605 (Medium) | Algebra +2 tags

555-605 (Medium) | Algebra, Arithmetic, Functions and Custom Characters hide tags

ROckHIsT

29 Dec 2013, 03:38

56

8

16,145

by: bumpbot

16 Oct 2024, 07:43

ER

At a company dinner, each of the 56 employees present ate at least one

655-705 (Hard) | Arithmetic, Statistics and Sets Problems

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

amanvermagmat

11 May 2018, 11:38

15

3

2,892

by: bumpbot

12 Oct 2024, 05:50

ER

What is the value of the three-digit number SSS if SSS is the sum of

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

enigma123

16 Dec 2017, 00:44

90

14

26,683

by: bumpbot

09 Oct 2024, 01:22

ER

In the number 13,52#,@ and # represent distinct digits.

805+ (Hard) | Arithmetic, Multiples and Factors

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

godot53

10 Apr 2017, 06:03

55

4

7,272

by: bumpbot

02 Oct 2024, 13:49

ER

If the sum of the digits of the positive two-digit number x is 4, what

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

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

enigma123

18 Dec 2017, 23:52

26

12

21,912

by: bumpbot

02 Oct 2024, 04:49

Truck A gives an average of X miles per gallon of petrol while truck B

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

13 Jul 2018, 10:59

2

3

2,246

by: bumpbot

24 Sep 2024, 19:14

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

5,694

by: bumpbot

17 Sep 2024, 04:36

ER

Is q < 0?

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

Mo2men

28 Dec 2018, 21:46

5

3

3,044

by: bumpbot

07 Sep 2024, 08:58

Marvin bought video games at a standard price of $40 per video game.

505-555 (Easy) | Arithmetic

505-555 (Easy) | Arithmetic hide tags

amanvermagmat

05 Jun 2018, 11:11

5

2

2,625

by: bumpbot

14 Aug 2024, 21:43

ER

If a wire 27 meters long is cut into three pieces of three

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

mydreammba

01 Feb 2012, 08:05

44

16

22,010

by: bumpbot

11 Aug 2024, 09:12

ER

For real numbers, A, B, C, and D on the number line

805+ (Hard) | Absolute Values +2 tags

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

idinuv

04 Jan 2014, 23:57

74

12

10,832

by: bumpbot

10 Aug 2024, 01:17

ER

What is the sum of the series 12, 2, 15, -1, 18, -4, 21, -7, ..... 30?

655-705 (Hard) | Arithmetic, Sequences

655-705 (Hard) | Arithmetic, Sequences hide tags

unraveled

09 Dec 2019, 11:12

24

10

5,392

by: bumpbot

04 Aug 2024, 13:42

ER

What is the three-digit number abc, given that a, b, and c

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

enigma123

23 May 2013, 04:47

63

8

25,517

by: bumpbot

20 Jul 2024, 06:44

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

6,428

by: bumpbot

19 Jul 2024, 23:22

A shop sells small photo frames for $10 a piece, and large photo frame

555-605 (Medium) | Arithmetic, Word Problems

555-605 (Medium) | Arithmetic, Word Problems hide tags

amanvermagmat

08 Dec 2018, 22:14

5

2

1,934

by: bumpbot

19 Jul 2024, 16:30

ER

The average of a series of consecutive integers is an even integer

605-655 (Medium) | Arithmetic, Multiples and Factors

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

cgalan6

02 Aug 2017, 12:04

17

6

5,185

by: bumpbot

18 Jul 2024, 06:21

ER

In the problem below, AB, CD, and EF are two-digit numbers, where A, B

805+ (Hard) | Arithmetic, Number Properties

805+ (Hard) | Arithmetic, Number Properties hide tags

vishnugmatgupta

21 Nov 2021, 02:35

10

4

2,426

by: bumpbot

12 Jul 2024, 12:34

ER

Is the product of two positive integers x and y divisible by the sum o

505-555 (Easy) | Arithmetic, Number Properties

505-555 (Easy) | Arithmetic, Number Properties hide tags

AbdurRakib

24 Jun 2017, 03:29

95

8

29,311

by: bumpbot

10 Jul 2024, 05:28

ER

A author writes in his book : "I was born in year (x^2 + 4x + 4 ) and

705-805 (Hard) | Algebra, Arithmetic

705-805 (Hard) | Algebra, Arithmetic hide tags

maliyeci

04 Sep 2016, 04:45

14

6

3,593

by: bumpbot

02 Jul 2024, 07:45

ER

What does s^2t-st^2 equal given that s and t are positive integ

655-705 (Hard) | Arithmetic, Number Properties

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

mmelendez

13 Nov 2015, 16:21

4

6

2,814

by: bumpbot

30 Jun 2024, 05:53

ER

If Ms. Anna and Mr. Mathew are children of Mrs. Smith, how many brothe

605-655 (Medium) | Arithmetic, Number Properties

605-655 (Medium) | Arithmetic, Number Properties hide tags

shyind

11 Nov 2015, 01:41

24

10

5,871

by: bumpbot

29 Jun 2024, 08:56

ER

Byrne and some of his friends go out to dinner and spend $111, excludi

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

chand567

17 Nov 2018, 02:12

10

4

3,148

by: bumpbot

27 Jun 2024, 12:33

Three coconuts have distinct weights. The coconuts are weighed two at

655-705 (Hard) | Arithmetic, Word Problems

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

amanvermagmat

09 May 2018, 11:15

10

2

3,033

by: bumpbot

27 Jun 2024, 12:06

ER

The symbol # represents one of the four arithmetic operation

555-605 (Medium) | Arithmetic, Functions and Custom Characters

555-605 (Medium) | Arithmetic, Functions and Custom Characters hide tags

anilnandyala

09 Jan 2011, 08:49

61

8

28,036

by: bumpbot

26 Jun 2024, 08:04

X and Y are two positive numbers. Is X > Y ? (1) (X+Y)/2 > Y (2)

605-655 (Medium) | Arithmetic, Percent and Interest Problems

605-655 (Medium) | Arithmetic, Percent and Interest Problems hide tags

amanvermagmat

13 Aug 2018, 22:54

8

6

3,592

by: sayan640

21 Jun 2024, 17:43

ER

Is 48 divisible by a? (1) a is divisible by 9 (2) a is multiple of 16

655-705 (Hard) | Arithmetic +2 tags

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

chetan2u

28 Oct 2019, 05:13

6

4

2,663

by: bumpbot

07 Jun 2024, 05:05

ER

D represents a single digit number from 1 to 9. What is the value of D

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

Bunuel

28 Jul 2017, 01:23

12

8

6,217

by: bumpbot

30 May 2024, 05:53

There are 15 boys and 12 girls in a class. Is the average weight of

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

amanvermagmat

07 May 2018, 23:15

4

3

3,165

by: bumpbot

17 May 2024, 07:59

A tank is fitted with an inlet pipe and an outlet pipe. This tank was

605-655 (Medium) | Arithmetic, Word Problems

605-655 (Medium) | Arithmetic, Word Problems hide tags

amanvermagmat

10 May 2018, 10:59

3

2,940

by: bumpbot

16 May 2024, 16:12

ER

How many integers k are there such that x < k < y?

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

BrentGMATPrepNow

21 Jan 2020, 07:11

29

3

3,766

by: bumpbot

09 May 2024, 04:14

ER

In the problem below, AB, CD, and EF are two-digit numbers, where A, B

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

Bunuel

06 Oct 2021, 05:30

11

5

3,894

by: bumpbot

04 May 2024, 12:20

ER

The sequence of four numbers a1, a2 , a3 and a4 is such that

505-555 (Easy) | Arithmetic, Sequences

505-555 (Easy) | Arithmetic, Sequences hide tags

pritishmohan

18 May 2013, 01:25

69

10

19,408

by: bumpbot

29 Apr 2024, 08:42

ER

Data Sufficiency Pack 4, Question 2) Z is a positive integer...

605-655 (Medium) | Arithmetic, Number Properties

605-655 (Medium) | Arithmetic, Number Properties hide tags

EMPOWERgmatRichC

20 Nov 2015, 15:21

21

5

7,838

by: bumpbot

20 Apr 2024, 03:24

ER

X, Y, Z, W are all positive.. What is the value of the ratio Z:W ?

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

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

amanvermagmat

12 Mar 2018, 05:00

3

4

2,190

by: bumpbot

13 Apr 2024, 13:31

A list contains 5 positive integers. Are all the integers in this list

655-705 (Hard) | Arithmetic, Number Properties

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

amanvermagmat

31 May 2018, 02:34

10

4

3,075

by: bumpbot

23 Mar 2024, 17:10

ER

Of the 1,200 homes in City X that were remodelled last year

555-605 (Medium) | Arithmetic, Word Problems

555-605 (Medium) | Arithmetic, Word Problems hide tags

megafan

12 Feb 2013, 08:44

5

4,810

by: bumpbot

18 Mar 2024, 18:41

ER

The symbol represents one of the following functions: addition

555-605 (Medium) | Arithmetic, Functions and Custom Characters

555-605 (Medium) | Arithmetic, Functions and Custom Characters hide tags

Bunuel

15 Mar 2024, 01:31

3

2

1,194

by: GMATinsight

16 Mar 2024, 06:25

ER

In the diagram above each of the letters represents one of the digits

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

Bunuel

10 Apr 2017, 02:32

10

6

3,194

by: bumpbot

24 Feb 2024, 17:59

At a donation meeting yesterday, each of N persons donated $100

555-605 (Medium) | Algebra, Arithmetic

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

thalcantero

21 Aug 2017, 15:47

2

3,186

by: bumpbot

02 Feb 2024, 23:21

ER

What is the total weight of 36 coins, in grams?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

CAMANISHPARMAR

10 Apr 2020, 23:14

6

4

3,563

by: bumpbot

02 Feb 2024, 22:34