PMS 2019 Past Paper MCQs, Maths MCQs, PPSC Solved Past Papers MCQsA horse runs around a ground twice and covers a distance of 8KM, one side of square ground is?A. 8KM B. 4KM C. 1KM D. 2KM How many countries are there in Asia?Who among the followings invented bifocal spectacles and lightining rod?
