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If the mean of 6, 7, x, 8, y, 14 is 9,th...

If the mean of 6, 7, x, 8, y, 14 is 9,then x + y = . . . .

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Knowledge Check

  • If the centroid of the triangle with vertices (7,x) , (y - 6) and (9, 10) is at (6, 3) , then (x , y ) = . . . .

    A
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    B
    (5, 4)
    C
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    D
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  • The maximum value of Z = x + 4y subject to the constraints 3x+6y le 6, 4x+8y ge 16, x ge 0, y ge 0 is ………

    A
    4
    B
    8
    C
    unbounded feasible region
    D
    Does not exist feasible region

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