MCQ PracticeA car travelling with frac57 of its usual speed covers 42 km in 1 hr 40 min 48 sec. What is the usual speed of the car?Subject: MathematicsTopic: Time DistanceA17frac67 km/hrB35 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