Problema Solution
The sum of the present ages of a father and his son is 60 year.
Six year ago, father's age was five times the age of the son. After 6 years
son's age will be?
Answer provided by our tutors
let
f = the present age of the father
s = the present age of the son
The sum of the present ages of a father and his son is 60 year
f + s = 60
Six year ago, father's age was five times the age of the son
f - 6 = 5(s - 6)
by solving the system of equations
f + s = 60
f - 6 = 5(s - 6)
we find
f = 46 years
s = 14 years
click here to see the step by step solution of the system of equations
s + 6 = 14 + 6 = 20 years
after 6 years the son will be 20 years old.