Important Relations:
1. Father’s or Mother’s son = Brother
2. Father’s or Mother’s daughter = Sister
3. Father’s or Mother’s brother = Uncle
4. Father’s or Mother’s sister = Aunt
5. Father’s or Mother’s father = Grandfather
6. Father’s or Mother’s mother = Grandmother
7. Brother’s or Sister’s Son = Nephew
8. Brother’s or Sister’s Daughter = Niece
9. Uncle’s or Aunt’s son or daughter = Cousin
10. Sister’s Husband = Brother-in-law
11. Brother’s wife = Sister-in-law
12. Son’s wife = Daughter-in-law
13. Daughter’s Husband = Son-in-law
14. Husband’s or wife’s sister = Sister-in-law
15. Husband’s or wife’s Brother = Brother-in-law
Example 1. Pointing to a man. On the stage “Suman said” He is the brother of daughter of the wife of my husband’. How is the man of stage related to Rita?
A. Son
B. Husband
C. Cousin
D. Nephew
E. None of these
Explanations: So the person is son of Suman. Hence the answer is (A).
Example 2. In a family there are 6 persons and only 1 married couples in this family.
A is the father of B
E is the daughter of D and grand Daughter of C.
E is the sister of F, who is brother of B.
Q1. Who is the daughter in law of the family?
1. A
2. B
3. C
4. D
5. G
Answer is (D)
Q2. How many male members are there ?
A.1
B. 2
C. 3
D. 4
E. Can’t determined
Answer is (E). As the sex of C, G, B cannot be determined.
Q3 How many female members are there?
A. 2
B. 5
C. 7
D. 1
E. Can’t be determined
Answer is (E). As the sex of C, G, B cannot be determined .
Q4 How is G related to ‘C’?
A. Wife
B. Husband
C. Spouse
D. Can’t determined
E. Son
Answer is (D)
Q5 If ‘C’ is a male then how is ‘G’ related to ‘A’?
A. Mother
B. Sister
C. Wife
D. Daughter
E. Mother in law
Answer is (e).
Example 3. If A + B means A is the mother of B; A - B means A is the brother B; A % B means A is the father of B and A x B means A is the sister of B, which of the following shows that P is the maternal uncle of Q?
A. Q-N+M*P
B. P+S*N-Q
C. P-N+M*Q
D. Q-S%P
Explanation:
P - M → P is the brother of M
M + N → M is the mother of N
N x Q → N is the sister of Q
Therefore, P is the maternal uncle of Q. Answer is (C).
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?
A. Brother
B. Sister
C. Nephew
D. Can’t determined
Explanation:
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 be determined. Answer is D