A bookstore sold 320 books in a week, including fiction and non-fiction books. Each fiction book was sold for ₹240, and each non-fiction book for ₹180. If the total revenue earned from all the books…
Question and options
A bookstore sold 320 books in a week, including fiction and non-fiction books. Each fiction book was sold for ₹240, and each non-fiction book for ₹180. If the total revenue earned from all the books sold was ₹65,760, find the absolute difference between the numbers of fiction books and non-fiction books sold.
- 32
- 56
- 64
- 48
Answer and explanation
Correct answer: D - 48
f + n = 320 and 240f + 180n = 65760. Subtract 180 x 320 = 57600: 60f = 8160, so f = 136 and n = 184. Difference = 48.
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