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If father is three times as old as son 5 years ago he was 4 times age of his son what is son age?

Theresa Perry

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Karen Wright on December 5, 2018

Let F = father's age let S = son's age then F = 3 (F - 5 = 4(S-5) F - 5 = 4S -20 F = 4S - 15 F = 3S 3S = 4S-15 S = 15, the age of the child


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