Two passenger cars A and B depart from two stations at 8:00 am at the same time and drive towards each other. After a period of time, the two buses arrive at both sides of a river at the same time. Because the bridge on the river is under maintenance, vehicles are prohibited from passing through. The two vehicles need to exchange passengers, and then return to their respective departure stations on the same road. It was already 2 o'clock in the afternoon when they arrived at the station. Car A travels 40 kilometers per hour, and car B travels 45 kilometers per hour. How many kilometers are there between the two places? (The time for exchanging passengers is omitted)
甲乙两辆客车上午8时同时从两个车站出发，相向而行，经过一段时间，两车同时到达一条河的两岸．由于河上的桥正在维修，车辆禁止通行，两车需交换乘客，然后按原路返回各自出发的车站，到站时已是下午2点．甲车每小时行40千米，乙车每小时行45千米，两地相距多少千米？(交换乘客的时间略去不计)
<gadget id="calculator">40 + 45</gadget>
<output>85</output>

<gadget id="calculator">14 - 8</gadget>
<output>6</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">85 * 3</gadget>
<output>255</output>

<result>255</result>