Question

When a group photograph is taken all the 10 teachers should be in the first row with principal and vice principal in the middle. The 18 students will be in second row with the two leaders at the extreme. How many arrangements are possible.

Answer 1

The principal and the vice principal can be seated in 2! ways, 8 teachers can be seated in 8! ways. 

16 students can seated in 16! ways and 2 leaders can be seated in 2! ways. 

∴ Total number of ways = 2! 8!16! 2! ways.