The average speed of a motorcycle is 40 kilometers per hour, the speed of a train is 5 times that of a train, and the speed of an airplane is 4 times that of a train. How many kilometers per hour does an airplane fly on average?
摩托车平均每小时行40千米，火车的速度是它的5倍，飞机的速度是火车的4倍，飞机平均每小时飞行多少千米？
<gadget id="calculator">40 * 5 * 4</gadget>
<output>800</output>

<result>800</result>