Question

A printer numbers the pages of a book starting with 1 and uses 3189 digits in all. How many pages does the book have ?

Answer 1

@ganeshie8

Answer 2

how many pages does the book have

Answer 3

1074

Answer 4

I don't need the answer , i need explanation

Answer 5

No. of digits in 1-digit page nos. = 1x9 = 9.

No. of digits in 2-digit page nos. = 2 x 90 = 180.

No. of digits in 3-digit page nos. = 3 x 900 = 2700.

No. of digits in 4-digit page nos. = 3189 - (9 + 180 + 2700) = 3189 - 2889 = 300.

Therefore No. of pages with 4-digit page nos. = (300/4) = 75.

Hence, total number of pages = (999 + 75) = 1074.

Answer 6

I know that is from a website , but i didn't get it though

Answer 7

really

Answer 8

then i dont know

Answer 9

sry

Answer 10

thank you though for helping