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      Question

      A merchant mixes 9 kg of beans at Rs. 7 per kg with 6 kg

      at Rs. 5 per kg. What is the cost price (in Rs.) of the mixture per kg? 
      A Rs. 5.9 Correct Answer Incorrect Answer
      B Rs. 6.2 Correct Answer Incorrect Answer
      C Rs. 6.5 Correct Answer Incorrect Answer
      D Rs. 6.7 Correct Answer Incorrect Answer

      Solution

      Required cost price = (6 Ă— 9 + 5 Ă— 7) Ă· (9 + 7) = (89 / 16) = Rs. 5.56

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