An airplane flies 3,600 kilometers in 4 hours, and a car travels 60 kilometers per hour. How many times faster is the speed of the airplane than the car?
一架飞机4小时飞行3600千米，一辆汽车每小时行60千米，这架飞机的速度是这辆汽车的几倍？
<gadget id="calculator">3_600 / 4</gadget>
<output>900</output>

<gadget id="calculator">900 / 60</gadget>
<output>15</output>

<result>15</result>