SOLUTION: It takes 852 digits to number the pages of a book consecutively. How many pages are there?

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Question 283071: It takes 852 digits to number the pages of a book consecutively. How many pages are there?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
pages1-9 uses 9 digits
pages 10-99 uses (99-9)*2=180
852-189=663
663/3=331 pages