Two trains leave opposite directions at the same time from two stations. Car A travels 95 kilometers per hour, and car B travels 85 kilometers per hour. After 3 hours, the two cars meet. How long is the railway between the two stations?
两列火车从两个车站同时相向开出．甲车每小时行95千米，乙车每小时行85千米，经过3小时两车相遇．两个车站之间的铁路长多少千米？
<gadget id="calculator">95 + 85</gadget>
<output>180</output>

<gadget id="calculator">180 * 3</gadget>
<output>540</output>

<result>540</result>