MCQ PracticeThe ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then the speed of the first train is:Subject: MathematicsTopic: Time DistanceA70 km/hrB75 km/hrC84 km/hrD87.5 km/hrCorrect 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
