PPSC Past Paper CARETAKER Lahore High Court 2019 Solved MCQs, Maths MCQs, PPSC Solved Past Papers MCQsIf x + y = 6, y + z = 7 and z + x = 9, the average (arithmetic mean) of x, y and z is?A. 11/3 B. 11/2 C. 22/3 D. 11 Satyagraha was started by?14 * .014 =?