A printer numbers the pages of a book starting with 1 and uses 2832 digits in all. How many pages does the book have?
976
961
980
1073

Awesome!

Try again!

Please choose an answer!

solve

No. of digits in 1-digit page nos. = 1 x 9 = 9.
No. of digits in 2-digit page nos. = 90 x 2 = 180
.No. of digits in 3-digit page nos. = 2832 - ( 9 + 180) = 2643.
∴ No. of pages with 3-digit page nos. = (2643 / 3) = 881.
Hence, total number of pages = (9 + 90 + 881) = 980.
Try another topic:
Make predictions