1) If I number the pages os a 36 page book, how many digits do I write?

My answers is 63, not sure if this is the correct answer?

2) How many pages does a book have if in numbering them I use:
a) 129 digits? A= 69 pages?

b) 203 digits? A= 104 pages?

Could you please check my answers?

Thank you

1 answer

1) is what I get too.

2. a) I agree with 69 as well. 63 digits will get you to p36. Another 66 digits will get you another 33 pages.

b) When I calculate this, I get 204 digits for 104 pages:
9 digits for 1-9
180 digits for 10-99
15 digits for 100-104

I think you're probably right, because I don't see how you can make an exact number of pages with 203, but I wonder whether there's a typo.