MCQ PracticeIf a : b = 2 : 3 and b : c = 4 : 5, then (a + b) : (b + c) is equal to-Subject: MathematicsTopic: Ratio And ProportionA6 : 8B8 : 6C20 : 27D27 : 20Correct 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