MCQ PracticeIf a: b = c: d, then ma + ncmb + nd is equal to -Subject: MathematicsTopic: Ratio And ProportionAm: nBdm: cnCan: mbDa: bCorrect 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