PPSC Past Paper Inspector Youth Affairs 2019 Solved MCQs, Maths MCQs, PPSC Solved Past Papers MCQsSolve the following x + y = 22, x – y = 8 what is the value of x . y?A. 105 B. 209 C. 109 D. None of these Rickets is a disease due to deficiency of vitamins. it is related to?Pakistan won its last hockey Olympic Gold in?