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    Question

    If the ratio of number of boys and girls present in the

    playground is 5:4. 10 boys left the playground, leaving total number of girls same as the boys playing in the playground. Find the difference between total number of girls and boys present initially.
    A 11 Correct Answer Incorrect Answer
    B 10 Correct Answer Incorrect Answer
    C 12 Correct Answer Incorrect Answer
    D 13 Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    Let, Number of boys initially = 5x
    Number of girls initially = 4x
    When, 10 boys left the playground, leaving total number of girls same as the boys playing in the playground
    (5x - 10) = 4x
    x = 10
    So the difference between number of boys and girls is present initially is 10

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