A science fiction book has 186 pages, and after reading it for 6 days, there are still 42 pages left. How many pages does she read on average every day?
一本科幻书186页，明明看了6天后还剩42页，她平均每天看多少页？
<gadget id="calculator">186 - 42</gadget>
<output>144</output>

<gadget id="calculator">144 / 6</gadget>
<output>24</output>

<result>24</result>