+0

# help

+1
1141
3
+1112

How many ways are there to divide a red bracelet, a yellow bracelet, a green bracelet, and a black bracelet among 4 people if each person must receive exactly 1 of the bracelets?

Jan 9, 2018

#1
+101870
+1

Any of the 4 could receive the red bracelet

After this.....any of the remaining 3 people without a bracelet could receive the yellow bracelet

After this.....either of the remaining 2 people without a bracelet could receive the green bracelet

And, by default, the remianing person without a bracelet will get the black bracelet

So

4 * 3 * 2 *  1     =      24   ways

Jan 9, 2018
#2
+1112
0

this is part b

How many ways are there to divide a red bracelet, a yellow bracelet, a green bracelet, and a black bracelet among 4 people if each person can receive any number of bracelets, including 0? Each bracelet must be given to someone.

Jan 9, 2018
#3
+101870
+1

The second question is analogous to the number of ways of putting 4 distinguishable balls into 4 distinguishable boxes with no restrictions  [ that is....a box may contain 0 - 4 balls ]

The number of ways for this to happen is given by :

nk     =  44  =    256 ways

Where  k = the balls  [ the four bracelets ]   and  n = the boxes [ the four people]

Jan 10, 2018