For a story book, Xiaoling read the whole book (1/9) on the first day and 25 pages on the second day. The ratio of the number of pages read in two days to the number of pages in the book is 1:4. How much is this book in total? Page?
一本故事书，小玲第一天看了全书的(1/9)，第二天看了25页，两天看的页数与全书页数的比是l：4，这本书共多少页？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/4) - (1/9)</gadget>
<output>5/36 = around 0.138889</output>

<gadget id="calculator">25 / (5/36)</gadget>
<output>180</output>

<result>180</result>