Subject

    Quantitative Aptitude

    Topic

    Ratio

    The ratio of boys and girls in a class is 1:2 and the classroom has 24 students. How many boys would have to be admitted to make ratio of boys to girls 1:1?

    ক)
    6
    খ)
    8
    গ)
    10
    ঘ)
    12

    Explanation

    B + G = 24 B/G = 1/2 2B = G Now, B + 2B = 24 or, 3B = 24 or, B = 8 Then, 8 + G = 24 or, G = 24 - 8 or, G = 16 To make 1:1, The amount of boys must be equal to Girls. Thus, additional (16 - 8) or 8 boys is required.

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