趣味的数学-62
作者:gugeren+-
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趣味的数学-62
轿车位于A点,货车位于B点。轿车的速度是货车的x倍。
如果两车分别从A点和B点出发,轿车追赶上货车的时间,是它们互相对开后相遇的时间的x倍。
求x。
【The American Mathematical Monthly,1960,problem E1386】
【原文】
In overtaking a freight, a passenger train, which is x times as fast, takes x times as long to pass as it takes the two trains to pass when going in opposite directions.
Find x.