路程|四年级奥数题及答案
A、B、C三地一次分布在由西向东的一条道路上，甲、乙、丙分别从A、B、C三地同时出发，甲、乙向东，丙向西。乙、丙在距离B地18千米处相遇，甲、丙在B地相遇，而当甲在C地追上乙时，丙已经走过B地32千米。试问：A、C间的路程是多少千米？
答案：
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依题意，乙速：丙速为
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甲速：丙速为
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所以A、C间距离为48+72=120千米
