The pages of a book are numbered consecutively: 1, 2, 3, 4 and so on. No pages are missing. If in the page numbers the digit 3 occurs exactly 99 times, what is the number of the last page?
It's 73 but it can also less than 83 because if we count '3' nine times, it comes to be 73 as the last page but page numbers less than 83 does not add any extra '3' in it. So, answer can be less than 83 also.
