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      Question

      The ratio of zinc and copper in a brass pieces is 6:7.

      How much zinc will be there in 390 kg of such a piece?
      A 120 kg Correct Answer Incorrect Answer
      B 160 kg Correct Answer Incorrect Answer
      C 150 kg Correct Answer Incorrect Answer
      D 180 kg Correct Answer Incorrect Answer

      Solution

      Amount of zinc = 390 × (6/13) kg = 180 kg

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