1. Count married men and married women respectively.
2. Men are divided into relatives, friends, colleagues and classmates.
The woman is divided into relatives, friends, colleagues and classmates.
3. How many people were invited to each category,
4. The total amount is no problem.
If some people can't decide for a while, count one more table first. These can be discussed with the hotel. If there is no one, let them leave. If there are many people, open another table.