Q:

How many different ways can five dolls be arranged? 13 12 120 150

Accepted Solution

A:
We are given total number of dolls =5and there are five spaces only to be arranged in In first space:Any five dolls can be put in so, number of ways of putting dolls in first space is 5In Second space:One doll is already put in first space so, only four dolls can be put in so, number of ways of putting dolls in second space is 4In Third space:One doll is already put in second space so, only three dolls can be put in so, number of ways of putting dolls in third space is 3In Fourth space:One doll is already put in third space so, only two dolls can be put in so, number of ways of putting dolls in fourth space is 2In Fifth space:One doll is already put in fourth space so, only one dolls can be put in so, number of ways of putting dolls in fifth space is 1so, total number of ways five dolls can be arranged [tex] =5*4*3*2*1 [/tex][tex] =120 [/tex].................Answer