The passenger car travels 16% of the whole journey from A to B per hour, and the truck travels 78km per hour from B to A. If the trucks start from A and B at the same time and meet each other after 3 hours, how many kilometers are there between A and B?
客车从甲地到乙地每小时行全程的16%，货车从乙地到甲地每小时行78km．如果货车同时从甲、乙两地相对开出，经过3小时相遇，甲、乙两地相距多少千米？
<gadget id="calculator">52 / 100</gadget>
<output>13/25 = around 0.52</output>

<gadget id="calculator">234 / (13/25)</gadget>
<output>450</output>

<result>450</result>