SOLUTION: John is three times older than Peter. Four years ago John was four times older than Peter was at that time. How old are they now?

Question 974172: John is three times older than Peter. Four years ago John was four times older than Peter was at that time. How old are they now?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
John is three times older than Peter. Four years ago John was four times older than Peter was at that time. How old are they now?
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3 times older = 4 times as old.
4 times older = 5 times as old.
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J = 4P
J - 4 = 5(P - 4) = 5P - 20
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4P - 4 = 5P - 20
P = 16
J = 64
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