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      Question

      The ratio of zinc and copper in a brass pieces is 3:4.

      How much zinc will be there in 140 kg of such a piece?
      A 20 kg Correct Answer Incorrect Answer
      B 60 kg Correct Answer Incorrect Answer
      C 50 kg Correct Answer Incorrect Answer
      D 80 kg Correct Answer Incorrect Answer

      Solution

      Amount of zinc = 140 Γ— (3/7) kg = 60 kg

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