The average age of 6men, 8women and 1 young boy is 35 years. What is the age of the boy,if the average age of the men is 40 and that of the women is 34?
A
10
B
11
C
12
D
13
Correct Answer: 13
The total number of persons = 6 + 8 + 1 = 15 The total age of all of them = 15x35 = 525 The total age of 6 men = 6x40 = 240 The total age of 8 women = 8x34 = 272 Therefore, the age of the boy = 525 - (240 + 272) = 13