The school purchased 184 books. If these books are placed on 2 bookshelves, each shelf has 4 floors, how many books are placed on each floor?
学校购进184本图书，如果把这些图书放在2个书架上，每个书架有4层，每层放多少本图书？
<gadget id="calculator">184 / 2 / 4</gadget>
<output>23</output>

<result>23</result>