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    Question

    The table given below shows the percentage of Students

    in five different Schools out of total number of Students in all five Schools together and ratio of number of boys to girls students in the respective schools. Total number of students in all five schools together is 4000. Determine the average of number of girls in all five schools together.
    A 368 Correct Answer Incorrect Answer
    B 725 Correct Answer Incorrect Answer
    C 665 Correct Answer Incorrect Answer
    D 445 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Desired average = (0.14 × 4000 + 0.08 × 4000 + 0.10 × 4000 + 0.06 × 4000 + 0.08 × 4000)/5 = (560 + 320 + 400 + 240 + 320)/5 = 1840/5 = 368

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