SOLUTION: what is the solution to the question "raja's age is one-fifth his father's age after six years his age will be one-third his father's age. how old are they now."

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Question 550813: what is the solution to the question "raja's age is one-fifth his father's age after six years his age will be one-third his father's age. how old are they now."
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
r=%281%2F5%29f
r%2B6=%281%2F3%29%28f%2B6%29
%281%2F5%29f%2B6=%281%2F3%29%28f%2B6%29
%281%2F5%29f=%281%2F3%29%28f%29%2B3-6
%281%2F5%29f=%281%2F3%29%28f%29-3
%283%2F15%29f=%285%2F15%29%28f%29-3
-%282%2F15%29f=-3
%282%2F15%29f=3
%2815%2F2%29%282%2F15%29f=3%2815%2F2%29
f=45%2F2
f=22.5
r=%281%2F5%29f
r=%281%2F5%29%2845%2F2%29
r=45%2F10
r=4.5
R=4.5 years old
F=22.5 years old