Answer :

Hello! I'll help you find the minimum number of family members based on the given relationships:

1. 2 spouses (1 husband, 1 wife)
2. 2 brothers
3. 2 sisters
4. 2 sons
5. 2 cousins
6. 2 nephews
7. 2 uncles
8. 2 aunts
9. 4 brothers-in-law

To find the minimum number of family members, we need to consider the unique relationships and combine family members where possible. Here's how we can do it:

- 1 husband + 1 wife = 2 spouses
- 2 brothers + 2 sisters = 4 siblings
- 2 sons + 2 nephews = 4 male children
- 2 cousins = 2 cousins
- 2 uncles + 2 aunts = 4 aunts and uncles
- 4 brothers-in-law = 4 brothers-in-law

When we add up these relationships, we find that the minimum number of family members required to satisfy the given conditions is 2 (spouses) + 4 (siblings) + 4 (male children) + 2 (cousins) + 4 (aunts and uncles) + 4 (brothers-in-law) = 20 family members.

Therefore, the minimum number of family members needed is 20.