1 Answer | Add Yours
If the number of pages in the book is n we can get the following.
When 1<=n<=9 then we have 9 digits.
When 10<=n<=99 then we have 9+2xx90 = 189 digits.
So definitely the number of pages is ,ore than 100.
Let us assume it is 100<=n<=999. If this assumption is correct we will get a answer for n<=999.
The number of digits of the book would be;
9+2xx90+3(n-99) = 2004
n = (2004-180-9)/3+99
n = 704
So the answer we got is less than 999. That means our assumption is OK.
So the answer is 704 pages.
We’ve answered 315,487 questions. We can answer yours, too.Ask a question