A train departs from A at 9 am and arrives at B at 7 pm. If the train travels an average of 85 kilometers per hour, how many kilometers is the railway between A and B?
一列火车上午9时从甲地开出，下午7时到达乙地．如果火车平均每小时行驶85千米，甲乙两地间的铁路大约长多少千米？
<gadget id="calculator">85 * 10</gadget>
<output>850</output>

<result>850</result>