There are 160 people dining in Xinye Hotel at noon on Sunday, and there is one table for every 8 people. How many tables are needed? If these tables are placed in 5 rooms on average, how many tables are placed in each room?
新野宾馆星期日中午有160人就餐，每8人用一张桌子，需要几张桌子？如果把这些桌子平均放在5个房间里，每个房间里放几张桌子？
<gadget id="calculator">160 / 8</gadget>
<output>20</output>

<gadget id="calculator">20 / 5</gadget>
<output>4</output>

<result>4</result>