The train from Wuhan to Guangzhou can travel an average of 98 kilometers per hour. If the train departs from Guangzhou at 11 am and arrives in Wuhan at 6 pm, how many kilometers has the train traveled?
武汉至广州的火车，平均每小时可行驶98千米，如果这列车上午11时从广州开出，下午6时到达武汉，那么这列火车大约行驶了多少千米？
<gadget id="calculator">98 * 7</gadget>
<output>686</output>

<result>686</result>