MCQ PracticeIf 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:Subject: MathematicsTopic: Time And WorkA5 daysB40 daysC10 daysD20 daysCorrect Answer: APractice 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