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Total cost price of three goats = 6000 × 3 = Rs. 18000 Selling price of first goat = 1.15 × 6000 = Rs. 6900 Selling price of second goat = 1.12 × 6000 = Rs. 6720 Selling price of third goat = 0.85 × 6000 = Rs. 5100 Total selling price of all three goats = 6900 + 6720 + 5100 = Rs. 18720 Desired profit = 18720 – 18000 = Rs. 720 Desired profit percent = 720/18000 × 100 = 4% Hence, option b.
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