Question

A plane meets the co-ordinate axes at A, B and C, respectively. If the centroid of the triangle is (2, 2, 2), the equation of the plane is 

(a) x + y + z = 5 

(b) x + y + z = 6 

(c) x + y + z = 9 

(d) x + y + z = 4

Answer 1

Answer is (b) x + y + z = 6

Clearly, 

x + y + z = 6