Xiaopang used the 48 yuan lucky money to buy school supplies. He first bought some pens with 15 yuan, and the rest of the money bought 11 yuan a notebook. How many copies can he buy?
小胖用48元压岁钱去买学习用品，他先用15元钱买了一些笔，剩下的钱买11元一本的笔记本，正好可以买几本？
<gadget id="calculator">48 - 15</gadget>
<output>33</output>

<gadget id="calculator">33 / 11</gadget>
<output>3</output>

<result>3</result>