Multiple Choice Questions on The ratio of boys and girls in a groupis 7 6 If 4 more boys join the group and 3 girls leave the gro........... for SSC CGL Exam Preparation

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Multiple Choice Questions

The ratio of boys and girls in a groupis 7 6 If 4 more boys join the group and 3 girls leave the gro...........

Quantitative Aptitude (CGL) Ratio, Proportion
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    The ratio of boys and girls in a groupis 7 : 6. If 4 more boys join the group and 3 girls leave the group, then the ratio of boys to

    girls becomes 4 : 3. Whatis the total number of boys and girls initially in the group?

    This questions was previously asked in
    SSC CGL 4th March 2020 Shift-2
    View All ssc Previous Year Papers

    117

    Incorrect Answer

    78

    Incorrect Answer

    91

    Incorrect Answer

    104

    Correct Answer
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    Explanation:

    The ratio of boys and girls in a group is 7 : 6.
    Let the boys be 7x and girls be 6x.
    When 4 more boys join the group and 3 girls leave the group, then the ratio of boys to girls = 4 : 3

    _{6x-3}^{7x+4}=_{3}^{4}

    21x + 12 = 24x -12
    3x = 24
    x = 8
    Initially boys and girls = 7x + 6x = 13x = 13 8 = 104

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