Solve this. Q15). If y + z x x y z + x y z z x + y = k x y z , then k is equal to (a) 4 (b) - 4 (c) zero (d) none of these Share with your friends Share 2 Ashwary Kumar answered this (D) none of these 1 View Full Answer Aravind Subramanian answered this zero -1 Kenneth Toppo answered this Zero -1 Kavya answered this Hope it will help you 1 Kavya answered this Hope it will help you 0