A passenger train and a freight train depart from opposite places at the same time and meet each other in 5 hours. The freight train travels 50 kilometers per hour, and the passenger train travels 65 kilometers per hour. How many kilometers is the railway between the two places?
客车和货车同时从两地相对出发，5小时相遇，货车每小时行50千米，客车每小时行65千米，两地间的铁路长多少千米？
<gadget id="calculator">50 + 65</gadget>
<output>115</output>

<gadget id="calculator">115 * 5</gadget>
<output>575</output>

<result>575</result>