My question is: How many different orchid displays in a line are possible using four orchids of different colors if exactly three orchids are used?
I tried solving out the problem but I am not sure if my logic is correct. This is what I did: 4 * 3 * 2 = 24 which would classify itself as a permutation problem.
Yes, this is correct.
Originally Posted by delishus
More explanation, please
Originally Posted by Rapha
But why is the "2" needed? Where does it come from?