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英语
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Fred is 24 and twice as old as Ginger was when he was as old as she is now. Question:How old is Gin
Question:How old is Ginger?
人气:326 ℃ 时间:2020-04-06 01:56:58
解答
Gin is 16.
设Gin 现在是x岁,则列得方程为:
2(x-(24-x)))=x
x=16
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