Subject

    Bank Exam

    Topic

    Bangladesh Bank AD 2012

    Difference between two numbers is 2 and their sum is Then what is the difference of their square?

    ক)
    7
    খ)
    8
    গ)
    6
    ঘ)
    5

    Explanation

    x+y=4 x-y=2 x=3;y=1 x2-y2=8

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