car travels 84 kilometers per hour, and the speed of an airplane is 25 times that of a car. How many kilometers per hour does an airplane travel?
汽车每小时行84千米，飞机的速度是汽车的25倍，飞机每小时行多少千米？
<gadget id="calculator">84 * 25</gadget>
<output>2_100</output>

<result>2_100</result>