A car travels from A to B at 25 km per hour and can reach it in 6 hours. When returning, travel 30km per hour, how many hours can you reach land A?
一辆汽车，从甲地开往乙地，每小时行25km，6小时可以到达．返回时每小时行30km，几小时可以到达甲地？
<gadget id="calculator">6 / 30</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">25 * (1/5)</gadget>
<output>5</output>

<result>5</result>