The distance from Tianjin to Jinan is 360 kilometers. A train leaves at 1:30 pm and arrives at 5:30 pm. How many kilometers per hour does the train travel on average?
天津到济南的路程为360千米，一列火车由下午1：30分开出，到下午5：30分到达，火车平均每时行多少少千米？
<gadget id="calculator">360 / 4</gadget>
<output>90</output>

<result>90</result>