Answer:
The number of ways the representative can be seated are:
720
Step-by-step explanation:
We know that when 'n' people are to be seated around a round table than the number of ways of doing so is calculated by:
(n-1)!
Since in a circular seating there is no condition of the end point and hence the arrangement may start from anywhere.
Here we are given 7 nations who are to be seated at a round table.
Hence, the number of ways of doing so is:

Hence, the number of ways to do so is:
720