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    Question

    A box contains red, blue, and green balls in the ratio

    of 3:4:5. If there are 60 balls in total, how many blue balls are there?
    A 12 Correct Answer Incorrect Answer
    B 15 Correct Answer Incorrect Answer
    C 24 Correct Answer Incorrect Answer
    D 20 Correct Answer Incorrect Answer

    Solution

    Total parts = 3 + 4 + 5 = 12. Each part = 60 / 12 = 5. Number of blue balls = 4 parts = 4 * 5 = 20. Correct answer: D) 20

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