The school bought 480 books and put them on 3 bookshelves on average. Each bookshelf has 5 floors. How many books are placed on each floor?
学校买来480本书，平均放在3个书架上，每个书架有5层，平均每层放多少本？
<gadget id="calculator">480 / 3 / 5</gadget>
<output>32</output>

<result>32</result>