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2016年11月,笔者参加了湖南省第二届数学教师解题大赛,遇到了这样一道有趣的试题.题目8位乘客乘坐两辆小汽车从山区赶往火车站乘车,可是不巧,其中一辆汽车在距离火车站20千米的地方出了故障,不能行驶,此时离火车站停止检票上车的时间只剩下52分钟.这时唯一可以乘坐的交通工具只有一辆小汽车连同司机在内一次限乘5人,小汽车的平均速度为60千米/小时,乘客步行的平均速度为6千米/小时.
In November 2016, the author participated in the second session of mathematics teachers’ problem solving contest in Hunan Province, and encountered such an interesting examination topic.Unfortunately, eight passengers rode two cars from the mountainous area to the train station, but unfortunately A car broke down 20 km from the train station and could not drive, leaving the railway station to stop the ticket to pick up the time left only 52 minutes. At this time the only means of transport is only a car together with The driver is limited to 5 passengers at a time. The average speed of a car is 60 km / h. The average speed of passenger walk is 6 km / h.