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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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