The average of 6 numbers is 12. If one number is 20, find the average of the rest. MCQ with Answer and Explanation

Question

Share Report Error

The average of 6 numbers is 12. If one number is 20, find the average of the rest.

A. 9.6

B. 10

C. 11

D. 10.4

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum=6×12=72. Rest sum=72-20=52. Average=52/5=10.4.

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 1780. If average of 6 is 1775, average of remaining 4?

A. 1786

B. 1785

C. 1790

D. 1787.5

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Sum10=17800. Sum6=10650. Remaining=7150. Average=1787.5.

This question belongs to: Maths Average

Question #2

The average of 930,1240,1550 is

A. 1250

B. 1230

C. 1240

D. 1235

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
3720/3=1240.

This question belongs to: Maths Average

Question #3

The average of 3 numbers is 26. If the numbers are in the ratio 1:3:5, find the middle number.

A. 28

B. 22

C. 26

D. 24

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Sum=3×26=78. Ratio sum=1+3+5=9. Middle = (3/9)×78=26.

This question belongs to: Maths Average

Explore All Average MCQs