Question 1129856: Manu's age is 6 times Binu's age. 15 years hence Manu will be 3 times as old as Binu. Find Binu's age ? Answer by ikleyn(52792) (Show Source):
If Binu's age is x, then Manu's age is 6x.
The condition then says
6x + 15 = 3*(x+15).
Solve it:
6x + 15 = 3x + 45
6x - 3x = 45 - 15
3x = 30
x = 10.
Answer. Binu is 10 years old.
