一水池安有进水管、出水管各一根,单开进水管5分钟注满水池,单开出水管8分钟把一池水放光,现池内的水占容积的2/5,同时打开两管还要几分钟注满全池?( ) ...

作者: tihaiku 人气: - 评论: 0
问题 一水池安有进水管、出水管各一根,单开进水管5分钟注满水池,单开出水管8分钟把一池水放光,现池内的水占容积的2/5,同时打开两管还要几分钟注满全池?( ) A. 6 B. 7 C. 8 D. 9
选项
答案 C
解析

相关内容:水池,水管,一根,单开进,5分钟,单开出,8分钟,池水,现池,水占,容积,同时,两管,几分钟,全池

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