Math

20% of the books in a library are fiction. and the rest are non fiction. When 30% of the fiction books and 15% of the non fiction books are borrowed there are 1,312 books left in the library. How many books are borrowed?

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  3. 👁 250
  1. If there are x books, then
    f = 0.2x
    n = 0.8x
    x - 0.30f - 0.15n = 1312

    so, now find x, and then figure out how many are borrowed.

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