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crimeas [40]
3 years ago
7

A Book has 1257 digits in it page numbers. How many pages does the book have?

Mathematics
1 answer:
FrozenT [24]3 years ago
6 0
Each page from 10 to 99, inclusive (so total of 90 pages) needs two digits (for example page 12 needs two digits: 1 and 2); Each page from 100 to 200, inclusive (so total of 101 pages) needs three digits (for example page 123 needs three digits: 1, 2 and 3)
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