It's 360 kilometers from Tianjin to Jinan. A train leaves from Tianjin at 13:30 and arrives at Jinan at 16:30. How many kilometers does the train travel per hour?
Train running time: 16:30-13:30 = 3 hours; train speed: 360 △ 3 = 120 km. A: the average train runs 120 km per hour
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