A train leaves Xuzhou at 9:30 in the morning and arrives in Beijing at 4:00 in the afternoon. How long is the railway between Xuzhou and Beijing? The speed of the train is 120 km / h Come on!
In the morning, 12:00-9:30 = 2:30;
In the afternoon, 16:00-12:00 = 4:00
Total: 2:30 + 4:30 = 6:30 = 6.5 hours
120 × 6.5 = 780km
The length of the railway between Xuzhou and Beijing is about 780 kilometers
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