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7.10A trader purchases 70 kg of tea at 15 per kg and 30kg of tea at * 18.50 per kg. If the packing charges are2 percent, then at what price he must sell the mixtureof two to gain 15%?(A) * 18.80 per kg (B) 18 per kg(C) * 18.50 per kg (D) 17.80 per kg​

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-STEP EXPLANATION:I don't KNOW the ANSWER for this QUESTION



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