A passenger plane departs from Qingdao at 11:30 in the morning and arrives in Hainan at 2:00 in the afternoon. It is known that the distance from Qingdao to Hainan is 2,250 kilometers. How many kilometers does this plane travel on average per hour?
一架客机上午11：30从青岛出发，下午2：00到达海南．已知从青岛到海南的距离为2250千米，请问这架飞机平均每小时行使多少千米？
<gadget id="calculator">2_250 / 2.5</gadget>
<output>900</output>

<result>900</result>