SOLUTION: A sales representative calls on four hospitals. It is immaterial what order he calls them. how many ways can he organize his calls?
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Question 104933: A sales representative calls on four hospitals. It is immaterial what order he calls them. how many ways can he organize his calls?
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
For the first call he has 4 choices.
For the next call he has 3 choices.
For the next call he has 2 choices.
For the last call he has 1 choice.
now multiply these choices:
5*4*3*2*1=120 are the possible choices he has.
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