An express train and a slow train depart from two stations A and B respectively at the same time and meet at a distance of 5 kilometers from the midpoint. It is known that the speed ratio of fast and slow trains is 3:2, how many kilometers are the distance between A and B?
一辆快车与一辆慢车分别从甲、乙两站同时相对开出，在距中点5千米处相遇．已知快慢车的速度比是3：2，甲、乙两站相距多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">2 / (1/5)</gadget>
<output>10</output>

<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<result>50</result>