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    3. Quantitative Aptitude
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    5. If x² + y² + z² = xy + yz + zy (x≠0), then the value of (5x+3y-4z)/2x is

    Question

    If x² + y² + z² = xy + yz + zy (x≠0),

    then the value of (5x+3y-4z)/2x is
    A 2 Correct Answer Incorrect Answer
    B 3 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 5 Correct Answer Incorrect Answer

    Solution

    x² + y² + z² = xy + yz + zx (x≠0) If x² + y² + z² - xy - yz - zx = 0 Then x = y = z (5x+3y-4z)/2x = (5x+3x-4x)/2x = 4x/2x = 2

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    Relevant for Exams:

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