The average of 3 numbers is 15. If each number is multiplied by 4, what is the new average? MCQ with Answer and Explanation

Question

Share Report Error

The average of 3 numbers is 15. If each number is multiplied by 4, what is the new average?

A. 30

B. 75

C. 60

D. 45

Answer: Option C

Solution (By JKSSB Mock Tests)

New average =15×4=60.

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

Share Report

The average of 9 numbers is 40. If average of 6 is 35, average of remaining 3 is

A. 48

B. 45

C. 55

D. 50

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Sum9=360. Sum6=210. Remaining sum=150. Average=50.

This question belongs to: Maths Average

Question #2

Share Report

Average of 100 numbers is 50. If 98 is replaced by 52, new average?

A. 48

B. 49.46

C. 50

D. 49

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Change -46. Decrease 46/100=0.46. New 49.54 approx.

This question belongs to: Maths Average

Question #3

Share Report

Average income of 10 persons is Rs. 5000. If one leaves, average becomes Rs. 4800. Income of the person who left?

A. 7200

B. 6500

C. 6800

D. 7000

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Sum10=50000. Sum9=43200. Left=6800.

This question belongs to: Maths Average

Explore All Average MCQs