MCQ PracticeA train moves with a speed of 30 kmph for 12 minutes and for next 8 minutes at a speed of 45 kmph. Find the average speed of the train?Subject: MathematicsTopic: Problems On TrainsA37.50 kmphB36 kmphC48 kmphD30 kmphCorrect Answer: BPractice 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