Solution: Selling price of A after discount = 400 - (15% of 400) = 400 - 60 = ₹340. Selling price of B after discount = 600 - (20% of 600) = 600 - 120 = ₹480. Total revenue from A = 200 * 340 = ₹68,000. Total revenue from B = 150 * 480 = ₹72,000. Total revenue = 68,000 + 72,000 = ₹140,000. Total cost price = (200 * 300) + (150 * 450) = 60,000 + 67,500 = ₹127,500. Total profit = 140,000 - 127,500 = ₹12,500. Correct answer: A) ₹12,500
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