Answers

2015-01-28T06:02:48+05:30
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.
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