Two trains, A and B, depart from cities A and B at the same time. A travels 53.4 kilometers per hour, and B travels 1.6 kilometers more than A per hour. The two trains meet after 5 hours. What is the distance in kilometers between cities A and B?
甲、乙两列火车同时从A、B两城相对开出，甲每小时行53.4千米，乙每小时比甲多行1.6千米，5小时后两车相遇．求A、B两城间的距离是多少千米？
<gadget id="calculator">53.4 + 53.4 + 1.6</gadget>
<output>108.4</output>

<gadget id="calculator">108.4 * 5</gadget>
<output>542</output>

<result>542</result>