It takes 6 hours for a bus to go from A to B, and 8 hours for a truck to go from B to A. Two cars start from two places at the same time and drive opposite each other. When they meet, the truck travels 240 meters. How many kilometers are there between places A and B?
客车从甲地开往乙地需要6小时，货车从乙地到甲地需要8小时．两车同时分别从两地出发相对开出，相遇时货车行了240米，甲乙两地相距多少千米．
<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">240 / (3/7)</gadget>
<output>560</output>

<result>560</result>