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    Question

    The total strength of school A is 20% more than that of

    school B. In school A and B, out of total number of students, 15% and 40% respectively are girls. The number of boys in school A is how much percent more/less than that in school B?
    A 85% Correct Answer Incorrect Answer
    B 92% Correct Answer Incorrect Answer
    C 60% Correct Answer Incorrect Answer
    D 70% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the total number of students in school B be тАШxтАЩ. Therefore, total number of students in school A = 1.2x Number of boys in school A = 0.75 ├Ч 1.2x = 1.02x Number of boys in school B = 0.6x Required % = [(1.02x тАУ 0.6x)/0.6x] ├Ч 100 = 70%

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