Answer :
There are 30240 different ways can he arrange the five posters out of the ten on his closet door
How to determine the number of arrangements?
The given parameters are:
- Total, n = 10
- Posters to arrange, r = 5
The number of ways is calculated as:
Ways =[tex]^nP_r[/tex]
This gives
Ways =[tex]^{10}P_5[/tex]
Apply the permutation formula
Ways = 30240
Hence, there are 30240 different ways can he arrange the five posters out of the ten on his closet door
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