A bus departs at 10:30 in the morning and arrives at the station at 2:30 in the afternoon. The bus travels an average of 70 kilometers per hour. How many kilometers has the bus traveled in total?
一辆客车上午10：30出发，下午2：30到站，这辆客车平均每小时行驶70千米．这辆客车一共行驶了多少千米？
<gadget id="calculator">70 * 4</gadget>
<output>280</output>

<result>280</result>