Xiao Ming buys a story book back. He knows that he has read 40% of the book on the first day, and the ratio of the number of pages he read on the second day to the number of pages he read on the first day is 2:5. At this time, there are exactly 88 pages left. How many pages does this storybook have?
小明买回一本故事书，已知第一天看了40%，第二天看的页数与第一天看的页数比是2：5，这时正好还有88页没看，这本故事书一共有多少页？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * (2/5)</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">1 - (2/5) - (4/25)</gadget>
<output>11/25 = around 0.44</output>

<gadget id="calculator">88 / (11/25)</gadget>
<output>200</output>

<result>200</result>