Application of maths

Logic Level 2

In a school library, 28% of the books are classified as fiction and the remainder as non-fiction. Given that there are 1980 more non-fiction books than fiction books, find the total number of books in the library?

3240 1260 4600 4500

Aahil Alwani by Aahil Alwani , 20, Pakistan

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2 solutions

Aahil Alwani
Feb 28, 2016

Percentage of fiction books=28%.

To get the percentage of non-fiction books=100% - 28% =72%.

there are (72 - 28 )%= 44% more fiction books than non fiction books.

let x x be the total number of books in library. 44% of x x = 1980. 44 100 \frac{44}{100} * x x = 1980. x x = 1980 ∗ 100 44 \frac{1980*100}{44} . x x = 4500.

Thus, the total number of books in the library is 4500.

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Mahdi Raza
Jul 2, 2020

There is a 44% difference which is equivalent to 1980 books. This implies 1% of books is 45. Thus 100% of books will be 4500 \boxed{4500}

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