Question
A grocer blends 6 kg of dal at Rs. 9 per kg with 4 kg at
Rs. 3 per kg. What is the cost price (in Rs.) of the mixture per kg?Solution
Required cost price = (4 × 6 + 3 × 9) ÷ (6 + 9) = (51 / 15) = Rs. 3.4
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