A car has driven 420 kilometers from 8:00 am to 3:00 pm, what is the average number of kilometers traveled by this car per hour
一辆汽车从上午8时到下午3时共行驶了420千米，这辆汽车平均每小时行驶多少千米
<gadget id="calculator">420 / 7</gadget>
<output>60</output>

<result>60</result>