Posted by Anonymous on Thursday, October 20, 2011 at 10:46am.
There are 9 digits on pp 1-9
There are 90 digits on pp 10-99
That's 99 digits before page 100
The rest of the pages have 3 digits each.
555-99 = 456
456/3 = 152
So there are 99 + 152 = 251 pages
Oops - I see an error
There are 90 2-digit numbers, making 180 digits.
555 - 9 - 180 = 366
So, there are 122 3-digit pages, making 221 pages in all.
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