A car drives from Jinchengjiang to Bama at 8:50 in the morning and arrives at 1:50 in the afternoon. The distance from Jinchengjiang to Bama is about 320 kilometers. How many kilometers does this car travel on average per hour?
一辆汽车上午8：50从金城江开往巴马，下午1：50分到达，金城江到巴马的路程约是320千米，这辆汽车平均每小时行多少千米？
<gadget id="calculator">320 / 5</gadget>
<output>64</output>

<result>64</result>