Subject

    Bank Exam

    Topic

    Islami Bank Bangladesh Ltd. PO 2017

    If A, B, C and D are positive integers such that 4A = 9B, 17C = 11D, and 5C = 12A, then the arrangement of the four numbers from greatest to least is -

    ক)
    CDAB
    খ)
    BACD
    গ)
    DCAB
    ঘ)
    DCBA
    ঙ)
    BDAC

    Explanation

    4A = 9B => B = 4/9 A 5C = 12A => C = 12/5 A 17C = 11D => D = 17/11 C = 17/11 (12/5 A) = 204/55 A So the order from greatest to least is,  204/55 A, 12/5 A, A, 4/9 A Nothing but, DCAB

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