设丙遇乙的时间为X分.
列式:(70+80)*X=(60+80)*(X+10)
解得:X=140
两地相距(70+80)*140=21000米
答:____________
甲乙丙三人,甲每分走60米,乙70米,丙80米,甲乙从东镇出发丙从西镇,丙遇乙后,再10钟遇甲,求两地相距
甲乙丙三人,甲每分走60米,乙70米,丙80米,甲乙从东镇出发丙从西镇,丙遇乙后,再10钟遇甲,求两地相距
算式,和思路～
算式,和思路～
数学人气：818 ℃时间：2020-01-29 12:15:33
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