The railway between A and B is 560 kilometers long. A passenger train departs from A to B at 10 am and arrives at 6 pm on the same day. How many kilometers per hour does the train travel?
甲乙两城铁路长560千米，一列客车于上午10时从甲城开往乙城，当日晚上6时到达．这列火车每小时行多少千米？
<gadget id="calculator">18 - 10</gadget>
<output>8</output>

<gadget id="calculator">540 / 8</gadget>
<output>135/2 = around 67.5</output>

<result>135/2 = around 67.5</result>