Subject

    Bank Exam

    Topic

    Bangladesh Bank AD 2013

    In a group of people solicited by a charity, 30% contributed tk. 40 each, 45% contributed tk. 20 each and the rest contributed tk. 12 each. What percentage of the total amount came from people who gave tk. 40 each?

    ক)
    50%
    খ)
    30%
    গ)
    40%
    ঘ)
    45%

    Explanation

    30% contributed=40×30%=12 Tk 45% contributed=20×45%=9 tk Rest={100-(30+45)}%=25% contributed= 3 tk total=12+9+3=24 The percentage of the total amount came from people who gave tk. 40 each=(12×100)/24=50%

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