The cost of some books is rupees 60 .cost of every book is the same . Ifthe bookselller decreases the cost of the book by rupee 1 one gets 5 books more for the same amount . What is the cost of each book and how many books are purchased intext:zigya
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Answer:
cost of x books = Rs.60
cost of each book=60/x
each book cost decreased by rupee 1=(60/x-1)
he brought 5 more books for the same amount
(60/x-1)(x+5)=60
x=15
cost of each book=60/15=4
number of books=15
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