Xiaohong reads a book. On the first day, she reads half of the book and more than 3 pages. On the second day, she reads the remaining half and less than 3 pages. On the third day, she reads the remaining 48 pages. How many pages does this book have?
小红看一本书，第一天读了全书的一半多3页，第二天读了剩下的一半少3页，第三天读完余下的48页．这本书共有多少页？
<gadget id="calculator">48 - 3</gadget>
<output>45</output>

<gadget id="calculator">45 * 2</gadget>
<output>90</output>

<gadget id="calculator">90 + 3</gadget>
<output>93</output>

<gadget id="calculator">93 * 2</gadget>
<output>186</output>

<result>186</result>