The school has a batch of books, which are divided into several classes. If each class has 10 books, there will be 48 books left, and if each class has 13 books, there will be less than 24 books. Ask how many books are divided into each class just to finish.
学校有一批图书，分给几个班，如果每班分10本，则余48本，如果每班分13本，则不足24本．问每班分多少本刚好分完．
<gadget id="calculator">48 + 24</gadget>
<output>72</output>

<gadget id="calculator">13 - 10</gadget>
<output>3</output>

<gadget id="calculator">72 / 3</gadget>
<output>24</output>

<gadget id="calculator">24 * 10</gadget>
<output>240</output>

<gadget id="calculator">240 + 48</gadget>
<output>288</output>

<gadget id="calculator">288 / 24</gadget>
<output>12</output>

<result>12</result>