Question

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

Answer 1

Number of advanced Java sections : number of Core java sections :  = 7 : 2

Number of advanced Java sections = 7 /2 * number of core Java sections
           = 7/2 * 2 = 7
Assume that each section contains same number of pages.

Total number of pages = 450
Total number of sections = 7+2 = 9
Pages per section = 450/9 = 50

Pages for Core Java = 50 * 2 = 100
Pages for Advanced Java = 50 * 7 = 350

Answer 2

Answer:

Pages for Core Java = 50 * 2 = 100 pages

Pages for Advanced Java = 50 * 7 = 350 pages