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Number Theory
Level
3
To number the pages in a bulky volume the printer used 1890 digits. How many pages were there in the volume?
The answer is 666.
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1 solution
This is a brief summary of the answer.
A volume of 999 pages needs
9 + 2(90) + 3(900) = 2889
digits. If the bulky volume in question has x pages,
189 + 3( x - 99) = 1890
x = 666 digits