Xiaojun finished reading a fairy tale book in three days. He read 25% of the book on the first day, 24 pages on the second day, and 150% of the total in the first two days on the third day. How many pages does this book have?
小军用三天读完一本童话书，第一天读了全书的25%，第二天读了24页，第三天读的是前两天总数的150%，这本书有多少页？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">150 / 100</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1 + (3/2)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(3/2) / (5/2)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (1/4) - (3/5)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">24 / (3/20)</gadget>
<output>160</output>

<result>160</result>