MCQ PracticeA car completed a journey of 400 km in 12frac12 hrs. The first frac34 of the journey was done at 30 km/hr. Calculate the speed for the rest of the journey.Subject: MathematicsTopic: Time DistanceA45 km/hrB40 km/hrC25 km/hrD30 km/hrCorrect 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