The distance between Chongqing and Kaixian County is 476 kilometers. A certain car departed from Chongqing at 7:00 a.m. for Kaixian County and arrived at the station at 2:00 p.m. that day. How many kilometers per hour does the car travel on average?
重庆与开县相距476千米，某车上午7时从重庆出发开往开县，当天下午2时到站．这辆车平均每小时行多少千米．
<gadget id="calculator">14 - 7</gadget>
<output>7</output>

<gadget id="calculator">476 / 7</gadget>
<output>68</output>

<result>68</result>