MCQ PracticeA and B can do a work together in 18 days. A is three time as efficient as B. In how many days can B alone complete the work?Subject: MathematicsTopic: Time And WorkA60 daysB72 daysC54 daysD64 daysCorrect 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