英语奥数题

Town A and Town B are connected by a highway,with a service station at the midpoint.Mike and Sam start from A to B at the same time.When Mike reaches the service station,Sam is 16km behind.Mike reduces speed by 25 percent(0.25) after he passes through the service station.When Sam reaches the service station,Mike is 15km ahead of Sam.What's the distance between A and B?

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09-05-20  yesiyun 发布
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