The total number of digits used in numbering the pages of a book having 360 pages is
Choose the correct choice from the following options.
A) 972 B) 990 C) 1098 D) 1305 E) 1405

Rationale: "total number of digits = ( no . of digits in 1 - digit page nos . + no . of digits in 2 - digit page nos . + no . of digits in 3 - digit page nos . ) = ( 1 x 9 + 2 x 90 + 3 x 261 ) = ( 9 + 180 + 783 ) = 972 . answer : a"
Answer: A