MCQ PracticeIf 18, a, b - 3 are in A.P. then a + b =Subject: MathematicsTopic: ProgressionsA19B7C11D15Correct Answer: DPractice 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