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    Question

    There are 720 students (boys + girls) in a school.

    Number of boys are 40% more than number of girls. If 25% of the girls are from class 10, then find the number of girls from class 10.
    A 60 Correct Answer Incorrect Answer
    B 75 Correct Answer Incorrect Answer
    C 90 Correct Answer Incorrect Answer
    D 100 Correct Answer Incorrect Answer
    E 120 Correct Answer Incorrect Answer

    Solution

    Let number of girls in the school be 'x' So, number of boys in the school = 1.40 ├Ч x = '1.40x' ATQ: 1.40x + x = 720 Or, 2.40x = 720 So, x = 300 So, number of girls in the school = 300 So, number of girls from class 10 = 300 ├Ч 0.25 = 75

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