Respuesta :
slot meathod
5 lettters with 5slots
1st slot has 5 choices
2nd slot has 4 (1 went to first slot)
3rd slot has 3
2hd has 2
1st has 1
multiply them together
5*4*3*2*1=120
answer is 120 arangements
5 lettters with 5slots
1st slot has 5 choices
2nd slot has 4 (1 went to first slot)
3rd slot has 3
2hd has 2
1st has 1
multiply them together
5*4*3*2*1=120
answer is 120 arangements