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Total cost price = (10 * 400) + (15 * 300) = 4000 + 4500 = ₹8500. Total selling price = (10 * 600) + (15 * 500) = 6000 + 7500 = ₹13500. Total profit = 13500 - 8500 = ₹5000. Correct answer: D) ₹5,000
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