If E,G and K have their usual meanings, for an elastic material, then which one of the following be possibly true?

If E,G and K have their usual meanings, for an elastic material, then which one of the following be possibly true? Correct Answer K = E

As E = 2G(1 + μ) = 3K(1 – 2μ) = 9KG / (3K + G) The value of μ must be between 0 to 0.5, so as E never equal to G but if μ = 1/3, then E=K.
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