SOLUTION: A father and son's age is 50. After five years, the father is three times the age of the son. How old is their present age?

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Question 991876: A father and son's age is 50. After five years, the father is three times the age of the son. How old is their present age?
Answer by satyareddy22(84) About Me  (Show Source):
You can put this solution on YOUR website!
Let the age of father be x and the age of son be y.
x+y=50-----------(1)
x+5=3(y+5)=3y+15
x+5=3y+15=>x-3y=10-----(2)
solving (1)& (2)
from (1) x=50-y,substituting in(2)
50-y-3y=10
3y+y=50-10
4y=40=>y=40/4=10
y=10yrs
x=50-10=40=>x=40yrs
Therefore the age of father is 40years & age of son is 10 years.