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    Question

    The average score of a class of boys and girls in

    examination is X. The ratio of boys and girls in the class is 4:3. If the average score of the boys (X + 2), the average score of the girls is:
    A (3x + 2) / 3 Correct Answer Incorrect Answer
    B (3x – 8X) / 3 Correct Answer Incorrect Answer
    C (3x - 8) / 3 Correct Answer Incorrect Answer
    D (3x - 2) / 3 Correct Answer Incorrect Answer

    Solution

    Let there be 4x boys and 3x girls Total score = 4x + 3x = 7xX Total score of boys = 4x(X + 2) Total score of girls = 7xX – (4xX + 8x) = (3xX – 8x) Average score of girls = ((3xX – 8x))/3x

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