PPSC Assistant Sub Inspector (2020) Anti-Corruption, Maths MCQs, Number Series, PPSC Solved Past Papers MCQsComplete the number series: 6, 3, 12, 6, 24,_____?A. 12 B. 18 C. 30 D. 40 Gateway of invaders is?Who Ordered to Excavating Mohenjo-daro in 1922?