MCQ PracticeHarsha is 40 years old and Ritu is 60 years old. How many years ago was the ratio of their ages is 3 : 5 ?Subject: MathematicsTopic: Ratio And ProportionA10 yearsB20 yearsC37 yearsD5 yearsCorrect 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