The pages of a book are numbered for 1 to 100 manually. how many times will be it be essential to write the number 5.
5,15,25,35,45,50,51,52,53,54,55,56,57,58,59,65,75,85,95
So total there are 20 time 5 is used.
So total there are 20 time 5 is used.