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    Question

    In a class, the ratio of the number of boys to that of

    girls is 3 : 5. The number of students who passed to that of who failed is 7 : 3. Among boys, the number of those who passed to those who failed is in the ratio 2 : 1. Among girls, what is the ratio of the number of girls who passed to those who failed?
    A 18 : 7 Correct Answer Incorrect Answer
    B 9 : 4 Correct Answer Incorrect Answer
    C 12 : 5 Correct Answer Incorrect Answer
    D 15 : 7 Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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