Xiaoli reads a book. She reads 10% of the whole book on the first day, 35% of the whole book on the second day, and 44 pages on the third day, which is exactly half of the whole book. How many pages does this book have?
小丽读一本书，第一天读了全书的10%，第二天读了全书的35%，第三天读了44页，正好读了全书的一半，这本书一共有多少页？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(1/2) - (1/10) - (7/20)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">44 / (1/20)</gadget>
<output>880</output>

<result>880</result>