The average of 7 numbers is After discarding one number, the average becomes What is the discarded number?

The average of 7 numbers is After discarding one number, the average becomes What is the discarded number?

A 7

B 10

C 18

D 12

Solution

Correct Answer: Option C

Total of 7 numbers = 12x7 = 84 Total of 6 numbers = 11x6 = 66

Discarded number = 18