Question

I have one hundred students and want to form classes of 25 students, how many different groups of students can i have?

Answer 1

This is called a combination problem ...

Explanation:

Since the " order " of the students within the class does not matter, this is a combination ...

Number of different groups `=(""_25^100)=(100!)/(25!xx75!)~~2.425xx10^23`

hope that helped