修一条长560m的公路,4天修了160m.照这样计算,修完这条公路需要多少天
人气:187 ℃ 时间:2020-04-20 08:08:21
解答
一天能修160/4=40m天
560/40=14天
已经修了4天了
再修10天就完了
总共需要14天
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