Asked by Student56
20% of the books in a library were fiction books while the rest were non-fiction books. When 30% of the fiction books and 15% of the non-fiction books were borrowed, there were 1312 books left in the library. How many books were borrowed?
(Please show me your workings clearly.)
(Please show me your workings clearly.)
Answers
Answered by
Henry
X books in Lib.
Fiction = 0.2x books.
Non-fiction = 0.8x. books.
0.7(0.2x) + 0.85(0.8x) = 1312.
0.14x + 0.68x = 1312
0.82x = 1312
X = 1600.
0.2x = 320.
0.8x = 1280.
Books Borrowed = 1600 - 1312 = 288.
Fiction = 0.2x books.
Non-fiction = 0.8x. books.
0.7(0.2x) + 0.85(0.8x) = 1312.
0.14x + 0.68x = 1312
0.82x = 1312
X = 1600.
0.2x = 320.
0.8x = 1280.
Books Borrowed = 1600 - 1312 = 288.
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