Question

    The combined Average marks of Boys and girls of a class

    is 66 and the ratio of number of boys and girls is 3:1 and the average marks of the boys is 68. Find the average marks of the girls?
    A 45 Correct Answer Incorrect Answer
    B 60 Correct Answer Incorrect Answer
    C 80 Correct Answer Incorrect Answer
    D 75 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Ratio = 3:1 (66-x)/2 = 3/1 66 – x = 6 x = 60

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