Question

Word permutation question!

Answer 1

First find a way to pick the start and end characters.

Answer 2

Do you know how you would do that?

Answer 3

Using FCP?

Answer 4

like, the first space should be a x3 and the last a x2?

Answer 5

break the problem down into two steps, first find the number of ways to begin and end with D,P,or M

Answer 6

would that be 3P2? I'm confused, this unit is confusing :P

Answer 7

What I mean is something like:
1. Chose a letter from D,P, M and put it at front
2. Chose a letter from remainder D,P,M and put it at the back
3. Assign the remaining D,P,M somewhere in the middle
4. Assign the remaining characters in the remaining spots.

Answer 8

oh, the spaces shouls look something like this then? 3 x 5 x 4 x 3 x 2 x 1 x 2