SOLUTION: There are 256 pages in a book. How many digits are used to number the pages, starting from 1?

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Question 681791: There are 256 pages in a book. How many digits are used to number the pages, starting from 1?
Answer by Alan3354(69443) About Me  (Show Source):
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There are 256 pages in a book. How many digits are used to number the pages, starting from 1?
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1 to 9 --> 9 digits
10 to 99 = 2*90 = 180 digits
100 to 256 = 157*3 = 471 digits
660 digits