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    Question

    There are 108 girls in a class who can read. If 40% of

    students in the class are girls, out of which 75% can read, then find the number of students in the class.
    A 320 Correct Answer Incorrect Answer
    B 360 Correct Answer Incorrect Answer
    C 300 Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let the number of students in the class be тАШ100xтАЩ. Number of girls in the class = 100x ├Ч 0.40 = тАШ40xтАЩ Number of girls who can read = 40x ├Ч 0.75 = тАШ30xтАЩ ATQ: 30x = 108 Or, x = 3.6 So, the number of students in the class = 3.6 ├Ч 100 = 360 Alternate solution: Number of students in the class = 108 ├╖ 0.75 ├╖ 0.40 = 360

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