The distance between A and B is 360 km. The speed of a motorcycle is 60 kilometers per hour, how many hours can this motorcycle go back and forth between two cities?
甲、乙两城市之间的距离是360千米．一辆摩托车的速度是每小时60千米，这辆摩托车多少小时能往返两城市之间．
<gadget id="calculator">2 / 60</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">360 * (1/30)</gadget>
<output>12</output>

<result>12</result>