A car has traveled a total of 420 kilometers from 7:00 am to 2:00 pm. How many kilometers does this car drive on average per hour?
一辆小轿车从上午7时到下午2时，共行驶了420千米，这辆小轿车平均每小时行驶多少千米？
<gadget id="calculator">14 - 7</gadget>
<output>7</output>

<gadget id="calculator">420 / 7</gadget>
<output>60</output>

<result>60</result>