Tea costing Rs. 210 per kg is mixed with tea costing Rs. 270 per kg in the ratio 2 : 1. What is the cost price of the mixture per kg?
Correct answer B. Rs. 230
Explanation
Cost of 3 kg = 2 x 210 + 1 x 270 = Rs. 690, so the mixture costs 690 / 3 = Rs. 230 per kg.
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