Problema Solution
Mr.Alvaro is 20 years older than his son. in 5 years, he will be 5 years more than twice as old as his son then be. find their present ages
Answer provided by our tutors
let
a = the present age Mr.Alvaro
s = the present age of his son
Mr.Alvaro is 20 years older than his son
a = s + 20
in 5 years, he will be 5 years more than twice as old as his son then be
a + 5 = 5 + 2(s + 5)
by solving the system of equations
a = s + 20
a + 5 = 5 + 2(s + 5)
we find
a = 30 years
s = 10 years
click here to see the step by step solution of the system of equations
Mr.Alvaro is 30 years old now and his son is 10 years old now.