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WB JEE 2021
MCQ (More than One Correct Answer)
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A plane meets the co-ordinate axes t the points A, B, C respectively such a way that the centroid of $$\Delta$$ABC is (1, r, r2) for some real r. If the plane passes through the point (5, 5, $$-$$12) then r =
A
$${3 \over 2}$$
B
4
C
$$-$$ 4
D
$$-$$ $${3 \over 2}$$
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