MCQ PracticeIf a : (b + c) = 1 : 3 and c : (a + b) = 5 : 7, then b : (a + c) is equal to.Subject: MathematicsTopic: Ratio And ProportionA1 : 2B2 : 3C1 : 3D2 : 1Correct Answer: APractice 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