lamp consumes (3/50) kWh per hour. A reception room has no electrical appliances except this lamp. The power consumption of this reception room last month was 6 kwh. How many hours did this lamp last month?
一盏灯每时耗电(3/50)千瓦•时．某个传达室除了这盏灯外，没有其他用电器，这个传达室上个月的用电量是6千瓦•时，这盏灯上个月共使用了多少时？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">6 / (3/5)</gadget>
<output>10</output>

<result>10</result>