Question

The total number of digits used in numbering the pages of a book having 366 pages is
A. 732 B. 990
C. 1098 D. 1305

Answer 1

Pages 1-9 will each have one digit.
Pages 10-99 will each have two digits.
Pages 100-366 will each have three digits.

There are 9 pages with one digit, 90 pages with two digits, and 267 pages with three digits each. So, the total number of digits = 1*9 + 2*90 + 3*267 = 990.
The correct answer is B.

hope this helps!! :)