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来源: Genesis 于 2005-07-08 15:31:42 [] [旧帖] [给我悄悄话] 阅读数 : (264 bytes)
回答: how many times will they meet. 由 xyz100 于 2005-07-08 11:08:32

if I am the driver on the first car, assume it starts at 1:00, then at 1:30 I will meet the first car from the opposite direction at the middle point of the road. So it's going to be 7 in total.

if this traffic is going on and on and on, it's probably 13.

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