PPSC Past Paper Inspector Youth Affairs 2019 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsRickets is a disease due to deficiency of vitamins. it is related to?A. Nose B. Bones C. Ear D. Brain Namaz Eid is?Solve the following x + y = 22, x – y = 8 what is the value of x . y?