MCQ PracticeIf x: y = 7: 3, then the value of fracxy + y^2x^2 - y^2 isSubject: MathematicsTopic: Ratio And ProportionAfrac34Bfrac43Cfrac37Dfrac73Correct 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