The library in Johson City has between 1000 and 2000 books. Of these, 25% are fiction, 1/13 are biographies, and 1/17 are atlases. How many books are either biographies or atlases?
Simple logic, books can only be i whole number quantities. You can have two or three but never 2.5 books.
25% are fiction - that means the number of books is divisible by four
1/13 are biographies - thaty means the number of books is divisible by 13
1/17 are atlases - that means the number of books is divisble by 17
Now your task is simple...find a whole number between 1000 and 2000 that is divisible by 4, 13 and 15
The library in Johson City has between 1000 and 2000 books.
Of these, 25% are fiction, 1/13 are biographies, and 1/17 are atlases.
How many books are either biographies or atlases?
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