When Wang Ming reads a book, he reads 24% of the whole book on the first day. If he reads another 26 pages, he reads exactly half of the book. How many pages does the book have?
王明看一本书，第一天读了全书的24%，如果再读26页，就正好读了这本书的一半，这本书一共有多少页？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">24 / 100</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">(1/2) - (6/25)</gadget>
<output>13/50 = around 0.26</output>

<gadget id="calculator">26 / (13/50)</gadget>
<output>100</output>

<result>100</result>