Reading an extra-curricular book, I read 20% of the whole book on the first day, and 14 pages on the second day. At this time, the ratio of the number of pages I have read to the number of pages I have not read is 2:3. How much is this extra-curricular book in total? Page?
看一本课外书，第一天看了全书的20%，第二天看了14页，这时已看的页数和未看的页数的比是2：3，这本课外书共多少页？
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

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

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

<gadget id="calculator">1 - (3/5) - (1/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">14 / (1/5)</gadget>
<output>70</output>

<result>70</result>