The length of railway A and B is 720 kilometers. A train departs at 10 o'clock and arrives at the station at 4 o'clock in the afternoon. How many kilometers does this train travel per hour?
甲乙两铁路长720千米，一列火车从10时发车，下午4时到站，这列火车每小时行多少千米？
<gadget id="calculator">720 / 6</gadget>
<output>120</output>

<result>120</result>