The distance from Jiangxi Town to Hangzhou is 240 kilometers. A car departs from Jiangxi Town at 8:00 am and arrives in Hangzhou at 11:00 noon. How many kilometers does this car travel on average per hour?
从江西镇到杭州市的路程是240千米，一辆小汽车上午8：00从江西镇出发，中午11：00到达杭州，这辆小汽车平均每小时行多少千米？
<gadget id="calculator">11 - 8</gadget>
<output>3</output>

<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<result>80</result>