A man's age is now 3 times his son's age. Eight years back, the man's age was 5 times his son's age. what is the present age of the son?
A
15
B
16
C
20
D
18
Correct Answer: 16
Let, present age of the son is x So, 3x = 5 ( x - 8) + 8 3x = 5x - 40 + 8 2x = 32 x = 16