cost of 15 books is rupees 900. find the cost of 20 such books.
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Cost of 15 books : 900
cost of 1 book : 900/15 =60
Cost of 1 book =60
cost of 20 books = 60* 20 =1200
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Step-by-step explanation:
Cost of 15 books = ₹900Cost of 1 book = 900 ÷ 15 = ₹60So, 20 books cost = ₹60×20 = ₹1,200Therefore, the cost of 20 such books is ₹1,200
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