The digit 3 appears 87 times in the page numbers of a book .how many pages does the book have?
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Answer:
323 pages
Step-by-step explanation:
The number '3' occurs 3 times from 1-29.
From 30-39, the number '3' occurs 11 times.
From 40-99 the number '3' occurs 6 times.
Therefore, the number '3' occurs 20 times in a 100.
So up to 299, the number '3' occurs 60 times.
From 300 to 323, the number '3' occurs 17 times.
Therefore, up to 323 pages, the number '3' occurs 87 times
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