If the average of 5,6,7 and w is 8 the value of w is-

If the average of 5,6,7 and w is 8 the value of w is-

A 8

B 12

C 14

D 16

Solution

Correct Answer: Option C

5+6+7+w = 8×4

=> 18+w = 32

=> w = 32-18 = 14 (Ans.)