Here are 3876 ways of choosing the team if the order in which the runners are placed is not considered.
Now No ways are there of choosing the team if the order of the runners is to be taken into account
Since here are 4 student they can be chosen in 4!=24 for the relay team.
So total No way in which order of the runners is to be taken into account
24*3876=93024
So it will be between Between 75,000 and 99,999.