A wild goose flies 120 kilometers per hour, which is four times the speed of a car. How many kilometers per hour does the car travel?
大雁每小时飞行120千米，是汽车速度的4倍，汽车每小时行多少千米？
<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<result>30</result>