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If the ratio of x and y is a and that of ratio of y and x is b then what can be said about the value of (a+b)

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  1. Utkarsh Gupta
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    July 22, 2017 at 11:28 am

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    Here, (x/y) = a

    (y/x) = b

    Multiplying both, we get

    ab = 1

    Now,

    Since AM >= GM

    So,

    (a+b)/2 >= √(ab)

    => (a+b)/2 >= 1

    => (a+b) >= 2

     

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