SOLUTION: A father age is 4 times his son. in 5years time the father will be 3 times as old as his son. what's are their present age

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: A father age is 4 times his son. in 5years time the father will be 3 times as old as his son. what's are their present age      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1057043: A father age is 4 times his son.
in 5years time the father will be 3 times as old as his son.
what's are their present age
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
Let s be the son. Then his father is 4s. So:
3(s+5)=4s+5
3s+15=4s+5
s=10
The son is 10; the father is 40. ☺☺☺☺