Find the number of permutations in the word “fission”

In how many ways can a student arrange 6 textbooks on a locker shelf that can hold 4 books at a
time?

the number of permutations of the first 8 letters of the alphabet taking 5 letters at a time.

Question

Find the number of permutations in the word “fission”

In how many ways can a student arrange 6 textbooks on a locker shelf that can hold 4 books at a 
time?


the number of permutations of the first 8 letters of the alphabet taking 5 letters at a time.

raden · Answer

number 1)
use the formula :
P = n!/(q1!*q2!)
with n = the sum of elements
q1 and q2 are the elements have the same elements
what u get ?