PPSC Junior Clerk (BS-11) (2020) Anti-Corruption, Maths MCQs, PPSC Solved Past Papers MCQsWhich of the following is wrong?A. 227=3.2 B. 33/11=3 C. 22/7=3.14 D. 22/11=2 Who started the system of Islamic Calendar?2x + 7 =19 then x = ?