book of fairy tales has 210 pages in total. Xiao Pang planned to read it in 7 days, but actually read 5 more pages a day. How many days did it take Xiao Pang to finish this book?
一本童话书共210页，小胖计划7天看完，实际每天多看了5页，小胖看完这本书用了多少天？
<gadget id="calculator">210 / 7</gadget>
<output>30</output>

<gadget id="calculator">30 + 5</gadget>
<output>35</output>

<gadget id="calculator">210 / 35</gadget>
<output>6</output>

<result>6</result>