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    Question

    The ratio of the number of boys to the number of girls who

    are present in a class is 3:2. The number of girls who are absent is 15, which is 25% of the total number of students in the class. If no boy is absent, then find the number of boys in the class.
    A 24 Correct Answer Incorrect Answer
    B 21 Correct Answer Incorrect Answer
    C 18 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer
    E 27 Correct Answer Incorrect Answer

    Solution

    Total number of students = 15/0.25 = 60
    Number of students who are present = 60 – 15 = 45
    Therefore, number of boys in the class = 45 Γ— 3/5 = 27

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