MCQ PracticeA is three times as old as B. C was twice-as old as A four years ago. In four years' time, A will be 31. What are the present ages of B and C ?Subject: ReasoningTopic: Arithmetic ReasoningA9, 46B9, 50C10, 46D10, 50Correct Answer: BPractice 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