The railway between A and B is 822 kilometers long. A train departs from City A to City B at 11 am on March 25 and arrives at 7 pm on the same day. How many kilometers per hour does the train travel?
甲乙两地铁路长822千米，一列火车于3月25日上午11时从甲城开往乙城，当日晚上7时到达．这列火车每小时行多少千米？
<gadget id="calculator">19 - 11</gadget>
<output>8</output>

<gadget id="calculator">822 / 8</gadget>
<output>411/4 = around 102.75</output>

<result>411/4 = around 102.75</result>