MCQ PracticeIf in an A.P., S n = n 2 p and S m = m 2 p, where S denotes the sum of r terms of the A.P., then S p is equal toSubject: MathematicsTopic: ProgressionsA$$frac{1}{2}{p^3}$$BmnpCp 3D(m + n)p 2Correct Answer: CPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the