一座大桥长2500米,一列火车通过大桥时每分钟行960米,从火车车头开上桥到车尾离开桥共需3分钟.这列火车车身长多少米?
人气:429 ℃ 时间:2019-10-14 00:59:41
解答
3×960-2500
=2880-2500,
=380(米);
答:这列火车车身长380米.
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