It is 360 kilometers from Tianjin to Jinan. A train departs from Tianjin at 11:30 in the morning and arrives in Jinan at 3:30 in the afternoon. How many kilometers per hour does the train travel on average?
天津到济南360千米，一列火车上午11：30从天津开出，下午3：30分到济南，火车平均每小时行多少千米？
<gadget id="calculator">360 / 4</gadget>
<output>90</output>

<result>90</result>