MCQ PracticeIn how many different ways can the letters of the word ‘OPTICAL’ be arranged so that the vowels always come together?Subject: MathematicsTopic: Permutations And CombinationsA120B720C4320D2160Correct 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