The average of 12 numbers is 15 and the average of the first two is 14. What is the average of the rest ?

A. $$15\frac{1}{5}$$

B. 14

C. $$11\frac{1}{5}$$

D. 15

Answer: Option A

Solution(By Examveda Team)

Average of twelve number = 15
Sum of twelve number = 15 × 12 = 180
Average of first two number = 14
Sum of first two number = 14 × 2 = 28
Sum of first two + Sum of rest = 180
Sum of rest = 180- 28 = 152
Average of rest = $$\frac{152}{10}$$ = $$15\frac{1}{5}$$