A) 50 yr |
B) 30 yr |
C) 45 yr |
D) 20 yr |
A) 50 yr |
According to the question, average age of man and his twin sons = 30
Total age = 30 x 3 = 90 yr
According to the question, Ratio of father and one son = 5 : 2
Ratio of father and both the sons = 5 : 2 : 2(As sons are born on the same day)
5x + 2x +2x = 90 or 9x = 90
X = 10
Age of father = 5 X 10 = 50 yr.