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?
A. 4:00
B. 5:00
C. 6:00
D. 7:00
E. None of them
সঠিক উত্তরঃ
A.
4:00
Explanation:
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