6! = _____________ ক 24 খ 120 গ 720 ঘ 8 6! = _____________ সঠিক উত্তর 720 We know, n! = n.(n-1).(n-2).(n-3)….. 6! = 6.5.4.3.2.1 = 720. Bissoy MCQ Team Dec 01, 2024 Class 11 Maths Permutations and Combinations