|1||Grandfather’s son||Father or Uncle|
|2||Grandmother’s son||Father or Uncle|
|3||Grandfather’s only son||Father|
|4||Grandmother’s only son||Father|
|5||Mother’s or father’s mother||Grandmother|
|8||Husband’s or wife’s sister||Sister-in-Law|
|11||Uncle or aunt’s son or daughter||Cousin|
|14||Grandson’s or grand daughter’s daughter||Great grand Daughter|
The efficiency in doing the problems of blood relations depends upon the knowledge of the blood relations. Some of the important relations are given below:
Q.1. A is B’s daughter, B is C’s mother. D is C’s brother. How is D related to A?
A is daughter B. B is the mother of C. Therefore, D is Son of B and hence the brother of A.
Q.2. P is Q’s brother. R is Q’s mother. S is R’s father. T is S’s mother. How is P related to T
(b) Great grandson
P is the brother of Q . Therefore, P is a male. R is the mother of P and Q and R is the daughter of S. S is Son of T. S is the grandfather of P.
Q.3. A is B’s brother. C is D’s father. E is B’s mother. A and D are brothers. How is E related to C?
A is the brother of B. Therefore, A is male. C is the father of D. Therefore, C is male.
E is the mother of B. Therefore, E is Female.
A and D are brothers.
Therefore, D is male.
(i) A and D are brothers of D
(ii) C is the father of A, B and D
(iii) C is the mother of A, B and D
(iv) E is wife of C
Q.4. A is the sister of B. B is the brother of C. C is the son of D. How is D related to A?
Explanation: (1) B is brother of C
C is son of D.
A is the sister of B and C.
According to the options given, we are left with no choice. But selection option (a) is correct.
Q.5. B is the brother of A. whose only sister is mother of C. D is maternal grandmother of C. How is A related to D?
Explanation: Although sex of A is not mentioned clearly in the question. On the basis of information given is A is daughter of B.
Q.6. A and B are sisters. R and S are brothers. A’s daughter is R’s sister. What is B’s relation to S?
Explanation: A’s daughter R and S.
B is sister of A. B is aunt of S.
Q.7. E is the sister of B. A is the father of C. B is the son of C. How is A related to E?
Explanation: is the Son of C and Grandson C and Grandson A.
E is sister of B.
Therefore, A is Grandfather of E.
Q.8. Given that:
A is the mother of B.
C is the son of A.
D is the brother of E.
E is the daughter of B.
Who is grandmother of D?
Explanation: E is the daughter of B and D is brother of E. Therefore B is son A and A is mother of B.
Thus A, is Grandmother of D.
Q.9. A is D’ brother. D is B’s father. B and C are sisters. How is A related to C?
Explanation: B and C daughters of D .
A is brother of D .
Therefore A is uncle of C.
Q.10. A is B’s sister. C is B’s mother. D is C’s father. E is D’s mother, then how A is related to D?
Explanation: D is Father of C and B is mother of C.
Thus, A is grandfather of D
Q.11. (i) F is the brother of A.
(ii) G is the daughter of A.
(iii) K is the sister of F.
(iv) G is the brother of C.
Who is the uncle of G?
Explanation: G is A and F is brother of A.
Q.12. A is father of C and D is son of B. E is brother of A. If C is sister of D how is B related to E?
Explanation: C and D Children of A and B.
B is mother of C and D.
Therefore, B is Sister-in-law of E.
Q.13. C is wife of B. E is the son of C A is the brother of B and father of D. What is the relationship of E to D?
Explanation: E is B and C.
A is uncle of E and Father of D.
Therefore E is cousin of D.
Q.14. M is the son of P. Q is the grand-daughter of O, who is the husband of P. How is M related to O?
Explanation: O is the Husband of P. M is the son of P.
Therefore, M is son of O.
Q.15. X and Y are brothers. R is the father of Y. S is the brother of T and maternal uncle of X. What is T to R?
Explanation: R is the Father of X and Y.
S is the maternal uncle of X and Y.
Considering the option (b), T is wife of R.