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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 ?


Let  the common factor = x
then  core section has 7x pages
and advance section 2x pages

Total pages = 450
x = 50

Core section =  7x =7*50 = 350 pages
Advance Java section = 2x = 2*50 =100 pages

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