A passenger train travels 115 kilometers per hour, and a freight train is 20 kilometers slower than the passenger train per hour. Two trains depart from A and B stations at the same time. After 2.5 hours, the distance between the two trains is 45 kilometers. What is the distance between A and B? rice?
一列客车每小时行驶115千米，一列货车每小时比客车慢20千米，两列火车同时从甲乙两站同时开出，2.5小时后，两车相距45千米，甲乙两地距离是多少千米？
<gadget id="calculator">210 * 2.5</gadget>
<output>525</output>

<gadget id="calculator">525 - 45</gadget>
<output>480</output>

<result>480</result>