A transmission line can supply power to 3 air conditioners at most at the same time, and a company has installed one such air conditioner in each of the 4 rooms. Think about how many hours each room can use the air conditioner in 24 hours a day.
一条输电线路最多能同时给3台空调供电，某公司在4个房间里各安装了一台这样的空调．想一想，在每天24小时里，平均每个房间可以使用空调多少小时．
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">24 - 6</gadget>
<output>18</output>

<result>18</result>