设从A地到B地有2s千米,依题意
s/(s-60)=5/4,
∴4s=5s-300,
s=300.
乙到中点时,甲行驶300*5/4=375千米.
到中点后继续行驶,但甲乙两车的速度比转变为5比6,甲行驶到B地,乙行驶225*6/5=270千米,乙距离B地还有30千米.
从A地到B地,甲乙两车的速度比是5:4,甲到中点时,乙离中点还有60千米,乙到中点后继续行驶,但甲乙两车的速度比转变为5:6,甲行驶的B地,乙距离B地还有多少千米?
从A地到B地,甲乙两车的速度比是5:4,甲到中点时,乙离中点还有60千米,乙到中点后继续行驶,但甲乙两车的速度比转变为5:6,甲行驶的B地,乙距离B地还有多少千米?
数学人气:426 ℃时间:2020-03-29 15:18:35
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