Question

A Java book is comprised of two
sections core and advanced Java in the
ratio 7:2. How much of each type of
content will be needed to make a book of
450 pages?

Answer 1

ratio given = 7:2
total number of pages = 450 pages
sum of ratio = 7+2
= 9
number of pages the core section has = (7/9)/450
= 7*50
= 350.pages
number of pages in the java section = 450 - 350
= 100  pages.