BLOOD RELATIONS
The following table will be very useful for solving the questions on blood relations.
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.
6. Mother's or Father's father : Grandfather
7. Grandfather's only daughter-in-law : Mother
8. Grandmother's only daughter-in-law : Mother
9. Mother's or Father's son : Brother
10 . Mother's or Father's daughter : Sister
11 Mother's or Father's brother : Uncle
12. Mother's or Father's sister : Aunt
13. Husband's or wife's sister : Sister-in-law
14 . Husband's or wife's brother : Brother-in-law
15. Son's wife : Daughter-in-law
16. Daughter's husband : Son-in-law
17. Brother's son : Nephew
18. Brother's daughter : Niece
19 . Uncle or Aunt's son or daughter : Cousin.
20. Sister's husband : Brother-in-law
21. Brother's wife : Sister-in-law
Ex.1 Pointing to a man in a photograph, a man said to a woman, "His mother is the only daughter of your
father." How is the woman related to the man in the photograph ?
(A) Sister (B) Mother
(C) Wife (D) Daughter
Sol. From the information given in the question, it is clear that, the only daughter of the woman's
father is the woman herself, and hence the man in the photograph is her son. Therefore, the woman
is the mother of the man in the photograph. The answer is (B).
Ex.2 Pointing to a man in a photograph, a woman said, "The father of his brother is the only son of my
grandfather." How is the woman related to the man in the photograph ?
(A) Mother (B) Aunt
(C) Daughter (D) Sister
Sol. From the information, it is clear that the only son of woman's grandfather is the father of the woman and the
father of the man's brother is the father of the man. On combining these two information together a single information
emerges that the man's father is the woman's father. Hence woman is the sister of the man in the photograph. the answer is (D).
Ex.3 Indroducing Asha to guests, Bhaskar said, "Her father is the only son of my father." How is Asha related to Bhaskar ?
(A) Daughter (B) Mother
(C) Sister (D) Niece
Sol. The only son of Bhaskar's father is the Bhaskar himself. This means that Bhaskar is the father of Asha. Hence,
Asha is the daughther of Bhaskar. Therefore, answer is(A).
Ex.4 S × T means that S is the father of T,
S + T means that S is the mother of T, S–T means that S is the sister of T. On the basis of this information,
you have to select the option which shows that A is the grandfather of T.
(A) A × S × B – T (B) A × B + C – T
(C) A + C – T (D) A + B – C × T
Sol. Option (A) represents that A is the grandfather of T
(i) B – T = B is the sister of T.
(ii) S × B = S is the father of B, here
S will be father of T [from information (i)]
(iii) A × S = A is the father of S, hence A will be grandfather of B.
ASSIGNMENT
Q.1 A told B, "Yesterday I met the only brother of the daughter of my grand mother." Whom did A meet ?
(A) Cousin (B) Brother
(C) Nephew (D) Father
Q.2 Pointing to a man in the park, Naman said. "His son is my son's uncle." How is the man related to Naman ?
(A) Brother (B) Father
(C) Uncle (D) Grandfather
Q.3 Pointing to a man in a photograph Reena said, "His mother's only daughter is my mother." How is Reena related to that man
(A) Nephew (B) Sister
(C) Nice (D) Wife
Q.4 Amit said, "This girl is the wife of the grandson of my mother." How is Amit related to the girl ?
(A) Father (B) Father-in-law
(C) Grandfather (D) Husband
Q.5 Pointing to a man in a photograph, a woman said, "His brother's father is the only son of my
grandfahter." How is the woman related to the man in the photograph ?
(A) Mother (B) Sister
(C) Aunt (D) Daughter
Q.6 Pointing to a person, Rohit said to Neha, "His mother is the only daughter of your father." How is Neha related to the person
(A) Aunt (B) Mother
(C) Daughter (D) wife
Q.7 Pointing to a man, a woman said. "He is the brother of my uncle's daughter." How is the man related to woman ?
(A) Cousin (B) Son
(C) Brother-in-law (D) Nephew
Q.8 If B says that his mothers is the only daughter of A's mother, how is A related to B ?
(A) Son (B) Father
(C) Brother (D) Uncle
Q.9 Pointing to a lady, a man said. "The son of her only brother is the brother of my wife." How is the lady related to the man ?
(A) Mother's sister
(B) Grandmother
(C) Sister of father-in-law
(D) Mother-in-law
Q.10 Introducing a man, a woman said, "He is the only son of my mother." How is the woman related to the man ?
(A) Mother (B) Cousin
(C) Niece (D) Anut
Q.11 P is the brother of Q and R. S is R's mother. T is P's father. Which of the following statements cannot be definitely true ?
(A) Q is T's son (B) T is Q's father
(C) S is P's mother (D) P is S's son
Q.12 Introducing a man, a woman said, "His wife is the only daughter of my father." How is that man related to the woman ?
(A) Husband (B) Brother
(C) Father-in-law (D) Maternal-uncle
Q.13 A man said to a lady, "Your mother's husband's sister is my aunt." How is the lady related to the man ?
(A) Daughter (B) Sister
(C) Granddaughter (D) Mother
Q.14 Showing the lady in the park, Vineet said, "She is the daughter of my grand father's only son." How is Vineet related to that lady?
(A) Brother (B) Cousine
(C) Father (D) Uncle
Q.15 Introducing a girl, Vipin said, "Her mother is the only daughter of my mother-in-law." How is vipin related to the girl ?
(A) Uncle (B) Father
(C) Brother (D) Husband
Q.16 'A + B' means 'A is the son of B', 'A – B' means 'A is the wife of B'. 'A × B' means 'A is the brother of B', 'A ¸ B'
means 'A is the mother of B', 'A = B' means 'A is the sister of B'. Which of the following represents P is the maternal-uncle of Q ?
(A) R × P ¸ Q (B) P × R ¸ Q
(C) P + R ¸ Q (D) P + R × Q
Q.17 If 'P + Q' means 'P is the sister of Q', 'P – Q' means 'P is the mother of Q', 'P × Q' means 'P is the brother
of Q', 'P ¸ Q' means 'P is the father of Q'. Which of the following means M is the maternal-uncle of R ?
(A) M × T – R (B) M ¸ T × R
(C) M + T ¸ K – R (D) M ¸ N + J
Q.18 If S × T means 'S is brother of T', S + T means 'S is the father of T', which of the following shows 'O' is the Cousin of R?
(A) R × T + O (B) R + T × O
(C) R × O × T (D) None of these
Q.19 'P + Q' means 'P is the brother of Q', 'P – Q means P is the mother of Q and 'P × Q' means 'P
is the sister of Q'. Which of the following means that M is the maternal - uncle of R ?
(A) M – R + K
(B) M + K – R
(C) M + K × Q
(D) There is no such symbol
Q.20 In A + B means 'A is the brother of B', A ¸ B means 'A is the father of B' and A × B
means 'A is the sister of B'. Which of the following means 'M' is the uncle of 'P' ?
(A) M ¸ N × P (B) N × P ¸ M
(C) M + S ¸ R + P (D) M + K ¸ T × P
Q.21 Pointing towards a man in the photograph a lady said. "The father of his brother is the only son of my mother." How is the man related to the lady ?
(A) Brother (B) Son
(C) Cousion (D) Nephew
Q.22 Pointing towards a woman in the photograph, Rajesh said, "The only daughter of her grandfather is my wife." How is Rajesh related to that woman ?
(A) Uncle (Fufa) (B) Father
(C) Maternal uncle (D) Brother
Q.23 Pointing towards a man in the photograph, Archana said, "He is the son of the only son of my grandfather". How is the related to Archana?
(A) Cousin (B) Nephew
(C) Brother (D) Son
Q.24 A man said to a woman, "The only sister of your brother is my mother." How is the man related to the woman ?
(A) Father (B) Son
(C) Husband (D) Brother
Q.25 Pointing towards a lady, a man said, "The father of his brother is the only son of my grandfater." How is the lady related to that man ?
(A) Sister
(B) Daughter
(C) Bua (Father's sister)
(D) Mother-in-law
ANSWER KEY
1) D 2) B 3) C) 4) B 5) B 6) B 7) A 8) D 9) C 10) C
11) A 12) A 13) B 14) A 15) B 16) B 17) A 18) D 19) B
20) D 21) D 22) A 23) C 24) B 25) A