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Step 1: Total cost of the first variety = 50 × ₹60 = ₹3,000. Total cost of the second variety = 80 × ₹70 = ₹5,600. Total cost price of the mixture = ₹3,000 + ₹5,600 = ₹8,600. Selling price of the mixture = (50 + 80) × ₹72 = 130 × ₹72 = ₹9,360. Profit = 9,360 – 8,600 = ₹ 760