A book has 242 pages in total. Xiaogang has already read 50 pages, and he needs to finish the rest within 12 days. How many pages do he need to read on average every day?
一本书共242页，小刚已经看了50页，余下的要在12天内看完，平均每天要看多少页？
<gadget id="calculator">242 - 50</gadget>
<output>192</output>

<gadget id="calculator">192 / 12</gadget>
<output>16</output>

<result>16</result>