MCQ PracticeIn a class there are 20 boys and 25 girls. In how many ways can a boy and a girl be selected?Subject: MathematicsTopic: Permutations And CombinationsA400B500C600D20Correct 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