Solution:
We know that,
Number of pages in the book
Number of possible outcomes
Out of
pages, pages that sum up to
So, pages that sum up to
Hence, probability of choosing a page with the sum of digits on the page equals
pages. A page is chosen at random. What is the probability that the sum of the digits on the page is
?
pages. A page is chosen at random. What is the probability that the sum of the digits on the page is
?
Solution:
We know that,
Number of pages in the book
Number of possible outcomes
Out of
pages, pages that sum up to
So, pages that sum up to
Hence, probability of choosing a page with the sum of digits on the page equals