There are 4 bookshelves in the library, each shelf has 2 floors, and there are 768 books in total. How many books are placed on each floor on average?
图书室有4个书架，每个书架有2层，共放了768本书，平均每层放多少本书？
<gadget id="calculator">768 / 4 / 2</gadget>
<output>96</output>

<result>96</result>