<PRE><B>Question 974172</B>
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</PRE>