Xiaohong reads a book. On the first day, she reads half of the book and more than 4 pages. On the second day, she reads the remaining half. On the third day, she reads the remaining 48 pages. How many pages does this book have?
小红看一本书，第一天看了全书的一半多4页，第二天读了剩下的一半，第三天读完余下的48页．这本书共有多少页？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">48 - 2</gadget>
<output>46</output>

<gadget id="calculator">4 + 46</gadget>
<output>50</output>

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

<gadget id="calculator">1 - (1/2) - (1/2)</gadget>
<output>0</output>

<gadget id="calculator">(1/4) + 0</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">50 / (1/4)</gadget>
<output>200</output>

<result>200</result>