From among the 36 teachers in a school, one principal and one vice principal are to be appointed. In how many ways can this be done?

Explanation

Number of teachers=`36`.

The number of ways to appoint a principal from the `36` teachers =`36`

And the number of ways to appoint a vice-principal from the remaining `35` teacher in =`35`

Thus the total number of ways to appoint a principal and a vice principal =`35xx36=1260`