在火车站，通常可见到列车运行时刻表．从其中的T14次列车时刻表_爱下问搜题

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问题问答题

在火车站，通常可见到列车运行时刻表．从其中的T14次列车时刻表可知，

停靠站	到达时刻	开车时刻	里程/km
上海	…	18：00	0
蚌埠	22：07	22：15	484
济南	03：04	03：12	966
北京	08：00	…	1463

（1）列车从蚌埠至济南区间段运行所经历的时间为多少？

（2）在此过程中的平均速度均为多少？（结果取整数）

答案

（1）列车在蚌埠的开车时间是22：15，到达济南的时间是03：04，所以列车从蚌埠至济南的行驶时间为t=03：04-22：15=4h49min=4

49

60

h．

（2）蚌埠至济南的距离是966km-484km=482km，

则此过程中的平均速度：v=

s

t

=

482km

4

49

60

h

≈107km/h．

答：（1）列车从蚌埠至济南区间段运行所经历的时间为4h49min；

（2）在此过程中的平均速度均为107km/h．

完形填空

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