Question:
Mark against the correct answer in each of the following:
If a plane meets the coordinate axes in $A, B$ and $C$ such that the centroid of $\triangle A B C$ is $(1,2,4)$, then the equation of the plane is
A. $x+2 y+4 z=6$
B. $4 x+2 y+z=12$
C. $x+2 y+4 z=7$
D. $4 x+2 y+z=7$
Solution:
