SOLUTION: In numbering the pages of a book, 375 digits were used. how many pages were there?

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Question 871505: In numbering the pages of a book, 375 digits were used. how many pages were there?
Answer by richwmiller(17219) About Me  (Show Source):
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pages 1-9 use 9 digits
pages 10-99 90 *2=180
pages 100 to 161 (62 pages) use 186 digits
9+180+186=375