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      Question

      In a community park, the ratio of the number of benches,

      swings, and slides is 4:3:2, respectively, and the average number of these items is 60. What is the average number of benches and swings in the park?
      A 92 Correct Answer Incorrect Answer
      B 84 Correct Answer Incorrect Answer
      C 55 Correct Answer Incorrect Answer
      D 70 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the number of benches in the park = тАШ4xтАЩ

      Then, the number of swings in the park = тАШ3xтАЩ

      And, the number of slides in the park = тАШ2xтАЩ

      According to the question,

      Image

      So, the average number of benches and swings =
      Image

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