Xiaohua borrowed a story book from the school library, read 20% of the book on the first day, and read 14 pages on the second day. At this time, the ratio of the number of pages read to the number of pages in the book is 2:3. Do you know how many pages this story book has?
小华从学校图书室借了一本故事书，第一天看了全书的20%，第二天看了14页，这时已看页数与全书页数的比是2：3．你知道这本故事书有多少页吗？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(2/3) - (1/5)</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">14 / (7/15)</gadget>
<output>30</output>

<result>30</result>