Escape RoomRiddle #1409
The printer's note: 'Numbering every page of this book, starting at page 1, took exactly 192 digits.' The three-digit code is the number of pages. What is it?
Hint: Pages 1 to 9 take one digit each, pages 10 to 99 take two.
Answer
100
Pages 1 to 9 use 9 digits and 10 to 99 use 180, for 189. Three more digits make one three-digit page, page 100.
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