Permutations and Combinations HElp please Math StatisticsWatch
I know 6P5 and I know there's 1 last period that any of the 5 subjects can take but I don't know how to include it in the calculation
Next, you identified that the other remaining period can be one of 5 subjects, so we multiply our permute number by 5. However, this bonus period of one of the subjects doesn’t have to be the last one, does it? It could be any of the periods, so what do we have to multiply by?
You also have to think about having two consecutive periods of the same class.