Wang Hua was reading an extracurricular reading. He read half of the book on the first day, and the remaining half was 25 pages the next day. There were still 40 pages left. How many pages in this extracurricular reading?
王华看一本课外读物，第一天看了这本书的一半，第二天看了剩下一半多25页，还有40页没有看完，这本课外读物共多少页？
<gadget id="calculator">25 + 40</gadget>
<output>65</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * (1/2)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/2) - (1/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">65 / (1/4)</gadget>
<output>260</output>

<result>260</result>