If one root of the equation $x^2+p x+12=0$ is 4 , while the equation $x^2+p x+q=0$ has equal roots, then the value of ' $q$ ' is

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If one root of the equation \(x^2+p x+12=0\) is 4 , while the equation \(x^2+p x+q=0\) has equal roots, then the value o…