The passenger car and the freight car depart from A and B oppositely at the same time, and meet each other in 5 hours. It is known that the speed ratio of the passenger car to the truck is 5:4, and the passenger car travels 60 kilometers per hour. How many kilometers is the distance between A and B?
客车和货车同时从A、B两地相对开出，5小时相遇．已知客车与货车的速度比是5：4，客车每小时行60千米，A、B两地相距多少千米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">60 * (4/5)</gadget>
<output>48</output>

<gadget id="calculator">60 + 48</gadget>
<output>108</output>

<gadget id="calculator">108 * 5</gadget>
<output>540</output>

<result>540</result>