A book has 100 pages. Xiaohong reads 25 pages on the first day, and 15 pages more on the second day than on the first day. Which page should she start reading on the third day?
一本书100页，小红第一天看了25页，第二天比第一天多看15页，第三天她应从哪一页看起？
<gadget id="calculator">25 + 15 + 25 + 1</gadget>
<output>66</output>

<result>66</result>