Question

13. There are three mathematics teachers and six classes
in a school. In how many different ways can they
choose the classes, provided one teacher takes one
class only ?​

Answer 1

Answer:

To combining two classes together.

Answer 2

There are 6 possibilities to take for a 1st teacher,after the first teacher is taken 1 class, the remaining classes is 5, after the second the teacher take the other class, there are 4 possibilities.

hence 6! * 5!* *4!

Therefore, The possibilities are 120