Subject

    Quantitative Aptitude

    Topic

    Average

    The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is :

    ক)
    73  kg
    খ)
    25 kg
    গ)
    50 kg
    ঘ)
    45 kg

    Explanation

    Weight of the teacher = (35.4 x 25 - 35 x 24) kg = 45 kg.

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