A trader bought 10 kg of apples for 405 out of which 1 kg of apples were found to be rotten. If he wishes to make a profit of 10%, at what rate should he sell the remaining apples per kg?
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Always ensure to account for spoiled or unavailable goods when calculating the selling price per unit. The profit percentage is typically calculated on the cost price (CP). Work step-by-step to avoid errors.