三个筑路队同时修一条路,甲修了600米,已修得相当于甲的5分之4,丙队修的相当于乙队的6分之5.丙队修了多
人气:228 ℃ 时间:2020-05-20 19:59:18
解答
乙:600x(4/5)=480
丙:480x(5/6)=400
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