SOLUTION: if today a father is four times as old as his son and five years ago he was five times as old as his son, find their present age

Question 720620: if today a father is four times as old as his son and five years ago he was five times as old as his son, find their present age
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Father's age now
Let = Son's age now
given:
(1)
(2)
----------------------
(2)
(2)
By substitution:
(2)

and
(1)
(1)
(1)
The Father is 80
The Son is 20
--------------
check:
5 years ago, the Father was
5 years ago, the Son was

OK

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