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JEE Advance - Mathematics (2003 - No. 3)
The value of $$k$$ such that $${{x - 4} \over 1} = {{y - 2} \over 1} = {{z - k} \over 2}$$ lies in the plane $$2x -4y +z = 7,$$ is
$$7$$
$$-7$$
no real value
$$4$$
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