Question
A shopkeeper blends 5 kg of coffee at Rs. 12 per kg with
7 kg at Rs. 8 per kg. What is the cost price (in Rs.) of the mixture per kg?Solution
Required cost price = (7 × 5 + 8 × 12) ÷ (5 + 12) = (131 / 17) = Rs. 7.71
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