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    In a class of 60, where girls are twice that of boys, Kamal ranked seventeenth from the top. If there are 9 girls ahead of Kamal, how many boys are af
    Question

    In a class of 60, where girls are twice that of boys, Kamal ranked seventeenth from the top. If there are 9 girls ahead of Kamal, how many boys are after him in rank ?

    A.

    3

    B.

    7

    C.

    12

    D.

    23

    Correct option is C

    Given:
    In a class of 60, where girls are twice that of boys, Kamal ranked seventeenth from the top. If there are 9 girls ahead of Kamal.
    As per given information,
    Total students = 60
    Girl : Boys
    2x : x
    3x = 60
    x = 20
    Total girls = 40
    Total boys = 20
    Total Students -  Ahead Kamal = 60 -17 = 43
    Total boys after Kamal = 43 - 31 = 12
    So, 12 boys are after him in rank.
    Thus, the correct answer is (c).

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