Average of 9 numbers is 28. If average of first 5 is 25, average of last 5 is 31, 5th number? MCQ with Answer and Explanation

Question

Share Report Error

Average of 9 numbers is 28. If average of first 5 is 25, average of last 5 is 31, 5th number?

A. 29

B. 28

C. 26

D. 27

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum9=252. Sum1-5=125. Sum5-9=155. 5th=125+155-252=28.

This question belongs to: Maths Average

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Average Questions

Question #1

Average of 1095,1460,1825 is

A. 1460

B. 1450

C. 1455

D. 1470

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
4380/3=1460.

This question belongs to: Maths Average

Question #2

The average of 1290,1720,2150 is

A. 1730

B. 1715

C. 1710

D. 1720

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
5160/3=1720.

This question belongs to: Maths Average

Question #3

The average of 10 numbers is 35. If each number is increased by 5, what will be the new average?

A. 35

B. 38

C. 40

D. 42

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
When each number increases by 5, the average also increases by 5. New average = 35+5 = 40.

This question belongs to: Maths Average

Explore All Average MCQs