Mother’s or Father’s son is called Brother.
Mother’s or Father’s daughter is called Sister.
Mother’s or Father’s father. called Grand Father.
Mother’s or Father’s mother is called Grand Mother.
Mother’s or Father’s brother is called Uncle.
Mother’s or Father’s sister is called Aunt.
Son’s wife is called Daughter-in-law.
Daughter’s husband is called Son-in-law.
Brother’s wife is called Sister-in-law.
Sister’s husband or Hushand’s or wife’s brother is called Brother-in-law.
Brother’s sons is called Nephew.Daughter is called Niece.
Relations from one generation to next:
Now after reading these blood relations , try to understand through some examples
Example 1: Sarita introduced a boy as the son of the daughter of the father of her uncle. The boy is Sarita’s
(a)Brother (b) Son (c) Uncle (d)Son-in-law (e)Nephew
Solution: Let’s go start from the end and keep on simplifying :
Daughter of uncle’s father means uncle’s sister.
Uncle’s sister means mother and son of the mother means her brother.
So the boy is Sarita’s brother. The answer is (a).
Example 2: A+B means A is the brother of’ B; A-B means A is the mother of B and A*B means A is the sister of B. Which of the folloowing means A is the maternal uncle of B,
(d)None of these
Solution : Note that C has a relation between A and B. option (a) A+C-B implies that A is the brother of C who is the brother of B who brother of B. So (a) do.. not &ye what is asked. Option (b) also does not saywhat is required. Option(c) Ai-C-13 means A is the brother of C who is the mother of B means that A is the maternal uncle of B. Hence answer is (A+C*B).
Example 3: Pointing to a photograph of a boy Ravi said,he is the son of the only son of my mother. How is Ravi related to that boy.
Solution : Boy in the photograph is the only son of the son of Ravi’s mother i.e., the son of Ravi. Hence, Ravi is the f other of boy. So option is (d).
Example 4: If A is the brother of B; B is the sister of C; and C is the father of D , how D is related to A?
(d) Cannot be determined
If D is Male, the answer is Nephew. If D is Female, the answer is Niece. As the sex of D is not known, hence, the relation between D and A cannot he determined.
Note: Niece – A daughter of one’s brother or sister, or of one’s brother-in-law or sister-in-law. Nephew -A son of one’s brother or sister, or of one’s brother-in-law or sister-in-law. So option is (d)
Points to remember:
The only son of your father- Yourself
Wife of the father-Nlother
The only son of grand father or grand mother -father
The only daughter-in-law of grand mother-mother
Mother-in-law of mother-Grand mother h.
Father-in-law of mother-Grandfather
The only daughter of the f other -sister
Son of the f other of the sister-Brother
Only son of the father-son
Only son of grand father – father