This type of reasoning question is based on the blood relations among the family members. And, you are required to find the relation between the particular members of the family. So, you must have a basic understanding of the different types of blood relations that exist in a family.
The following table will help you understand the different types of blood relations among the family members.
| Father's or mother's son |
Brother |
| Father's or mother's daughter |
Sister |
| Father's elder or younger brother |
Uncle (Paternal) |
| Mother's elder or younger brother |
Maternal Uncle |
| Father's elder or younger sister |
Aunt |
| Mother's elder or younger sister |
Aunt (Maternal) |
| Son's wife |
Daughter-in-law |
| Daughter's husband |
Son-in-law |
| Sister's husband |
Brother-in-law |
| Brother's wife |
Sister-in-law |
| Husband's brother or wife's brother |
Brother-in-law |
| Husband's sister or wife's sister |
Sister-in-law |
| Husband's father or wife's father |
Father-in-law |
| Husband's mother or wife's mother |
Mother-in-law |
| Brother's son or sister's son |
Nephew |
| Brother's daughter or sister's daughter |
Niece |
| Uncle's or aunt's son |
Cousin |
| Uncle's or aunt's daughter |
Cousin |
| Father's or mother's father |
Grandfather |
| Father's or mother's mother |
Grandmother |
| Father of grandfather or grandmother |
Great-grandfather |
| Mother of grandfather or grandmother |
Great-grandmother |
Note:
The relation on mother's side is called maternal, e.g., maternal uncle or aunt.
The relation on father's side is called paternal, e.g., paternal uncle or aunt.
