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1. A train travels from New York to Chicago a distance of approximately 840 miles, at an average rate of 60 miles per hour and arrives in Chicago at 6:00 in the evening Chicago time. At what hour in the morning New York City time, did the train depart for Chicago?(Note: Chicago time is one hour earlier than New York City time.)
- A. 4:00
- B. 4:00
- C. 4:00
- D. 4:00
Answer: Option B
Explanation:
6:00 in evening in Chicago = 7:00 in evening in New York. So, the train was in Chicago 7:00 in the evening, New York time.
The trip took T = D/R = 840/60 = 14 hours. Therefore, the train depart from New York at 7:00 - 14 hours = 5:00 in the morning, New York time.
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