Can someone explain this type of math problem?

Akayfosev
Thu, 29 May 2008 11:23:20 +0000

Try making a doodle to solve this problem. if you draw 4 circles or something, then you see that in the first circle (the first part for the play) you can only have four possible people in that part. For the 2nd part, you can only have 3 possible people for that part in the play because there’s already one person in the first part. For the third and fourth parts of the play you can only have 2 people for the third and 1 person in the 4th part. So you multiply all the possibilities together: 4 x 3 x 2 x 1 = 24 and that’s how you get that. If you see a problem like that again just use a factorial; 5!, 4!, etc.