SOLUTION: a father is 60 years old and son is half his age how old was the boy when the son was four times his age?

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Question 621995: a father is 60 years old and son is half his age how old was the boy when the son was four times his age?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

a father is 60 years old and son is half his age or 30

how old was the boy when (highlight%28x%29 years ago) the father was four times his age?

  4(30 -x) =  60-x

    60 = 3x

   x = 20, number of years ago.  Son was 10 at that time. (and the father 40)