MCQ PracticeThe speed of two trains are in the ratio 6 : 7. If the second train runs 364 km in 4 hours, then the speed of first train is :Subject: MathematicsTopic: Time DistanceA60 km/hrB72 km/hrC78 km/hrD84 km/hrCorrect 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