It takes 3 hours by bus and 5 hours by truck to travel the same distance. Two trucks depart from A and B at the same time, and meet each other after 6 hours. How many hours will it take for the truck to complete the journey?
行同样的一段路，客车要3小时，货车要5小时．两车同时从甲乙两地相对开出，经过6小时相遇，货车行完全程共要用多少小时．
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">6 / (3/8)</gadget>
<output>16</output>

<result>16</result>