There are 960 story books in the library, which are placed on 3 shelves on average, and each shelf has 8 floors. How many books are placed on each floor on average?
图书馆里有960本故事书，平均放在3个书架上，每个书架有8层，平均每层放多少本书？
<gadget id="calculator">960 / 3 / 8</gadget>
<output>40</output>

<result>40</result>