The distance between A and B is 390 kilometers. A car leaves A at 10 am and arrives at B at 4 pm. How many kilometers does the car travel per hour?
甲乙两地相距390千米，一辆汽车上午10时从甲地开出，下午4时到达乙地，这辆汽车每小时行驶多少千米？
<gadget id="calculator">16 - 10</gadget>
<output>6</output>

<gadget id="calculator">390 / 6</gadget>
<output>65</output>

<result>65</result>