answer me the question number 26 .........best answers only
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Answered by
69
Answer:
Let the cost of each book = x
Let number of books = y
Hence xy = 60
=> y = 60/x
After the price reduction new price = x-1
Total number of books = y + 5
Hence we get,
(x-1)(y+5) = 60
=> xy +5x - y -5 = 60
=> 60 + 5x - 60/x -5 = 60
=> 5x - 60/x -5 = 0
=> x -12/x - 1 = 0
=> x² - x -12 = 0
=> x = 4 or -3
rejecting -3 we get x = 4
=> y = 60/4 = 15
Hence the cost of each book is Rs 4 and total number of books purchased were 15
Answered by
6
Answer:
Refer the attached picture ...
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