PPSC Past Paper Sub Inspector Cooperative Societies 2018 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 Which of the following units is ozone layer thickness expressed in?Tripoli is the capital of?
