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Two years ago a father was four times as old as his son Three years from now the father will be only three times as old as the son How old is each now?
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f - 2 = 4(s - 2) ie f = 4s - 6; f + 3 = 3(s + 3) ie f = 3s + 6; well 4s - 6 = 3 + 6 i.e. s = 12 Father is 42, son is 12.