A class consists of 8 students (four boys and four girls) and one teacher. In how many ways can the students sit in a circle?

Answer: 5040ways

Step-by-step explanation:

This is a circular permutation question. Arrangement of objects in a circular path is (n-1) ! where n is the amount of object. Since there are 8 students sitting in a circle excluding their teacher, they can sit in (8-1) ! ways i. e 7! ways

7! = 7*6*5*4*3*2*1

7! = 5040ways

This means the students can sit in a circle in 5,040 ways