Question

Let image of the line x-1/3 = y-3/5 = z-4/2 in the plane 2x – y + z + 3 = 0 be L. A plane 7x + py + qz + r = 0 is such that it contains the line L and perpendicular to the plane 2x – y + z + 3 = 0 then

(A) p = 1 

(B) q = 42 

(C) p + q + r = 30 

(D) p + q + r = 0

Answer 1

Correct option: (A) (C)

Explanation: 

Point A lie on plane 2x – y + z + 3 = 0