Number of pages read on 1st day: 60
Number of pages read after 1st day: 20%, or .2 more, or 1.2(60) = 72
Since 132 (60 + 72) orof the pages have been read, and with P being the total number of pages, we get:
If you're asking for the number of pages in the book, then we get: Total number of pages, or