A shopkeeper buys some booksfor ₹ 80 if he had bought 4 more books for the same amount each book would have cost ₹ 1 less . find the no of books he bought .
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cost of book shopkeepers buy=80
shopkeeper brought book at the same amount =4
no. of one book=4÷ 80
= 20 book
shopkeeper brought book at the same amount =4
no. of one book=4÷ 80
= 20 book
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