Subject

    Quantitative Aptitude

    Topic

    Number

    If x and y are positive odd integers and z is an even integer, which one of the following statements cannot be true?

    ক)
    (x-z)y^2 is odd
    খ)
    (x-z)^2y is even
    গ)
    (x-z)y is odd
    ঘ)
    (x-y)^2z is even
    ঙ)
    none of these

    Explanation

    -(x-z): odd - even = odd -y²: odd × odd = odd -(x-z)²: odd × odd = odd -(x-y): odd - odd = even *এখন options গুলি যাচাই করি: -(A) সত্য: odd × odd = odd -(B) সত্য নয়: odd × odd = odd (even নয়) -(C) সত্য: odd × odd = odd -(D) সত্য: even × even = even *সুতরাং, (B) (x-z)²y is even হল একমাত্র statement যা true হতে পারে না। এটি সবসময় odd হবে। *তাই সঠিক উত্তর হল (B) (x-z)²y is even।

    Find Tutors

    View all Tutors