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A train travels from NY city to Chicago, a distance of approximately 840 miles, at an average rate of 60 miles per hour and arrives in Chicago at 6:00 evening, Chicago time. At what hour in the morning, NY city time, did the train depart for Chicago?( NOTE: Chicago time is one hour earlier than NY city time)
Answer: 5:00
这道题我的疑问是题里说,chicago time is one hour earlier than NY time,这个应该如何理解呢?如果从地理上得时差角度来看的话C比N早一个小时,那如果C是4点,N不应该是3点吗?可答案为什么是5点呢?是我提议理解的有问题吗?
麻烦大家帮我解释一下,谢啦~~~~ |
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