Dian Dian practiced writing during summer vacation. I wrote 3 pages a day. After 5 days, I speeded up and wrote all (1/5), leaving 25 pages. How many pages did Dian Dian practice in total?
点点暑假练习写字，每天写3页，5天后加快速度又写了全部的(1/5)，还剩下25页，点点共练习多少页？
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">15 + 25</gadget>
<output>40</output>

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

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">40 / (4/5)</gadget>
<output>50</output>

<result>50</result>