How many different signals can be generated by using 9 flags of which 4 are red, 3 are blue and 2 are green by arranging them on a staff, one below the other?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Here, we are suppose to arrange 9 objects, out of which 4 are of one kind, 3 are of second kind and 2 are of third kind.

So, the total possible arrangements would be


Hence 1260 signals can be generated.

Answered by  | 4th Jun, 2014, 03:23: PM