A passenger plane flies from city A to city B at 10:30 am, and arrives at city B at 2:30 pm. It is known that the distance between cities A and B is 2880 kilometers. How many kilometers does this passenger plane fly on average per hour?
一架客机上午10：30从A城飞往B城，下午2：30到达B城，已知A、B两城间的距离是2880千米，这架客机平均每小时飞行多少千米？
<gadget id="calculator">2_880 / 4</gadget>
<output>720</output>

<result>720</result>