Two trains, A and B, depart from A and B at the same time and meet each other after 12 hours. Train A travels 115 kilometers per hour, and the other train travels 120 kilometers per hour. How many miles is the distance between A and B?
甲、乙两列火车分别从A、B两地同时相对开出，12小时后相遇，甲车每小时行115千米，已车每小时行120千米．A、B两地间的路程是多少千米？
<gadget id="calculator">115 + 120</gadget>
<output>235</output>

<gadget id="calculator">235 * 12</gadget>
<output>2_820</output>

<result>2_820</result>