Average of 30 numbers 42. If average of 20 is 40, average of remaining 10? MCQ with Answer and Explanation

Question

Share Report Error

Average of 30 numbers 42. If average of 20 is 40, average of remaining 10?

A. 44

B. 46

C. 48

D. 45

Answer: Option B

Solution (By JKSSB Mock Tests)

Total=1260. Sum20=800. Remaining=460. Average=46.

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 10 numbers 1080. If average of 6 is 1075, average of remaining 4?

A. 1085

B. 1090

C. 1087.5

D. 1086

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Sum10=10800. Sum6=6450. Remaining=4350. Average=1087.5.

This question belongs to: Maths Average

Question #2

Find the average of the first 5 multiples of 7.

A. 19.5

B. 22

C. 21

D. 20

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Multiples:7,14,21,28,35 sum=105, count=5, avg=21.

This question belongs to: Maths Average

Question #3

Average of 1095,1460,1825 is

A. 1470

B. 1455

C. 1450

D. 1460

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
4380/3=1460.

This question belongs to: Maths Average

Explore All Average MCQs