Two trains are coming from A and B. The passenger car travels 60 kilometers per hour, and the truck travels 55 kilometers per hour. When the two trains meet, the passenger car travels 30 kilometers longer than the truck. What is the distance in kilometers?
两列火车从甲、乙两地迎面开来，客车每小时行60千米，货车每小时行55千米，两车相遇时，客车比货车多行了30千米，那么甲、乙两地间距离是多少千米？
<gadget id="calculator">60 - 55</gadget>
<output>5</output>

<gadget id="calculator">30 / 5</gadget>
<output>6</output>

<gadget id="calculator">60 + 55</gadget>
<output>115</output>

<gadget id="calculator">6 * 115</gadget>
<output>690</output>

<result>690</result>