A total of 160 roses were planted in 4 flower beds of a company. There are as many red and yellow roses in each flower bed. How many yellow roses are there on average in each flower bed?
某公司的4个花坛里一共栽了160棵月季花．每个花坛里红黄两种颜色的月季同样多．平均每个花坛里黄色的月季花有多少棵？
<gadget id="calculator">160 / 4 / 2</gadget>
<output>20</output>

<result>20</result>