The cost of 5 books is ₹ 240. Amit buys 20 such books and pays the shopkeeper ₹ 1000. What will be the change Amit will get back from the shopkeeper?
A
₹60
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B
₹20
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C
₹40
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D
₹100
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Solution
The correct option is C₹40 Given : Cost of 5 books = ₹ 240 ∴ cost of 1 book = 2405 = ₹48 Cost of 20 books = 48×20 = ₹960 Given: Amit pays the shopkeeper ₹1000 ∴ Change Amit will get = 1000 - 960 = ₹40