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4年後小明的父親還是比小明大27歲! 4年後父親的年齡是小明年齡的4倍,比小明的年齡大了小明年齡的4-1=3倍 所以 4年後小明的年齡 =27/(4-1) =27/3 =9歲 4年後父親的年齡 =9*4 =36歲 所以 父親現在的年齡 =36-4 =32歲
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