Please help to solve this question:

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/24 04:03:30

Please help to solve this question:
Candle A and candle B are of the same length.Candle A,which is broader,can burn for 5 hours while Candle B,the thinner candle,can burn for 4 hours.If both candles are lighted at the same time,how long does it take for candle A to be twice as long left as candle
Working please,thank you.

3小时后嘛,A剩2小时,B剩1小时

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