PPSC Assistant Sub Inspector (2020) Anti-Corruption, General Knowledge MCQs, PPSC Solved Past Papers MCQsHow many awards of Nishan-e-Haider were conferred upon brave Pakistan Soldiers who embraced Shahadat during the 1971 war?A. 3 B. 4 C. 5 D. 1 A is two years older than B who is twice as old as C. If the sum of the ages of A, B and C is 27, how old is B?Vaccination was discovered by______ ?
