Xiaohong reads a book. She reads 65 pages on the first day, and reads (1/4) of the whole book on the second day. The number of pages she reads on the second day is exactly 20% more than that on the first day. How many pages does this book have? ? (solution with equation)
小红看一本书，第一天看了65页，第二天看了全书的(1/4)，第二天看的页数恰好比第一天多20%，这本书共有多少页？(用方程解答)
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">65 * (1/5)</gadget>
<output>13</output>

<gadget id="calculator">65 + 13</gadget>
<output>78</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">78 / (1/4)</gadget>
<output>312</output>

<result>312</result>