Students in 7 classes of the fourth grade of Yuhong Primary School collected a total of 420 beverage bottles in 5 days. How many beverage bottles did each class collect per day on average?
育红小学四年级7个班的同学5天共收集饮料瓶420个，平均每班每天收集饮料瓶多少个？
<gadget id="calculator">420 / 7 / 5</gadget>
<output>12</output>

<result>12</result>