从A地到B地,甲车要10小时,乙车要15小时,两车同时从A、B两地相对开出,相遇时,甲车比乙车多行80千米,A、B两
地相距多少千米?
人气:391 ℃ 时间:2019-08-21 17:09:27
解答
80/(1/10-1/15)
=80/(1/30)
=2400千米
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