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五年级数学上册 稍复杂的工程问题 六步快速列出方程的方法
一条公路长360m，甲、乙两支施工队同时从公路的两端往中间铺柏油。甲队的施工速度是乙队的1.25倍，4天后这条公路全部铺完。甲、乙两队每天分别铺柏油路多少米？
五上数学同步课堂50/92
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