Blood Relation QA || Reasoning

Question 1:

Suresh pointed to a photograph of a boy and said, "He is the son of the only son of my mother."
How is Suresh related to the boy?

A) Brother
B) Uncle
C) Cousin
D) Father

Answer: D) Father

Explanation:
The boy in the photograph is the son of the only son of Suresh’s mother. That means the boy is the son of Suresh himself.
Hence, Suresh is the father of the boy.

Question 2:

Looking at a portrait of a man, Harsh said, "His mother is the wife of my father's son. I have no brothers or sisters."
Whose portrait was Harsh looking at?

A) His son
B) His cousin
C) His uncle
D) His nephew

Answer: A) His son

Explanation:
Harsh has no brothers or sisters, which means he is the only son of his father.

"My father's son" refers to Harsh himself.
"Wife of my father's son" means Harsh’s wife.
"His mother" refers to Harsh's wife, meaning the man in the portrait is Harsh’s son.

Question 3:

A man pointed at a photograph and said, "The lady in the photograph is my nephew’s maternal grandmother."
How is the lady related to the man's sister (who has no other sister)?

A) Cousin
B) Sister-in-law
C) Mother
D) Mother-in-law

Answer: C) Mother

Explanation:

The man refers to his nephew, which means his sibling is the nephew’s parent.
Since the man’s sister has no other sisters, she is the nephew's mother.
The nephew’s maternal grandmother is his mother’s mother.
Hence, the lady in the photograph is the mother of the man’s sister, making her his mother.

Question 4:

If A is the brother of B, B is the sister of C, and C is the father of D, how is D related to A?

A) Brother
B) Sister
C) Nephew
D) Cannot be determined

Answer: D) Cannot be determined

Explanation:

A is the brother of B and B is the sister of C, meaning A, B, and C are siblings.
C is the father of D, which means D is C’s child.
Since A is the uncle of D, D could be either a nephew or a niece, but the gender of D is not specified.

Hence, the relationship cannot be determined.

Question 5:

A’s son B is married to C, whose sister D is married to E, the brother of B.
How is D related to A?

A) Niece
B) Daughter-in-law
C) Daughter
D) Cannot be determined

Answer: B) Daughter-in-law

Explanation:

B and E are brothers, meaning A is their father.
D is married to E, making D the wife of A’s son (E).
The wife of a person's son is their daughter-in-law.

Therefore, D is A’s daughter-in-law.

Q6: In a family of six members—A, B, C, D, E, and F—A and B are a married couple, with A being the husband. C, A’s brother, has a son, D. E is D’s sister. B is the daughter-in-law of F, whose husband is deceased. How is E related to C?

Options: A. Sister
B. Daughter
C. Cousin
D. Mother

Answer: B. Daughter

Explanation:

A is a male and married to B, making B his wife.
C is A’s brother.
D is the son of C, meaning C is D’s father.
E, being D’s sister, is also C’s daughter.
B is the daughter-in-law of F, whose husband has passed away, indicating F is A’s mother.
Thus, E is the daughter of C.

Q7: (i) The family consists of six members: A, B, C, D, E, and F, including two married couples.
(ii) D is A’s grandmother and B’s mother.
(iii) C is B’s wife and F’s mother.
(iv) F is E’s granddaughter.

Who among the following forms a couple?

Options: A. CD
B. DE
C. EB
D. None of these

Answer: B. DE

Explanation:

C is the wife of B, making BC one married couple.
D is A’s grandmother and B’s mother.
Since F is E’s granddaughter, E must be the grandfather.
Therefore, D (grandmother) and E (grandfather) form the other married couple.

Q8: Q is R’s brother, and P is Q’s sister. T is S’s brother, while S is R’s daughter. Who are Q’s niece and nephew?

Options: A. R and P
B. P and T
C. Q and T
D. S and T

Answer: D. S and T

Explanation:

S is R’s daughter, and T is S’s brother, meaning both S and T are R’s children.
Q is R’s brother, so S and T are Q’s niece and nephew.

Q9: A family consists of six members—A, B, C, D, E, and F—each liking a different sport: Golf, Cricket, Football, Tennis, Badminton, and Swimming.

There are two married couples.
C likes football and is married to the person who likes tennis.
B is either the father or mother of F and E.
A is married to D, who likes badminton.
The grandchild of the person who likes cricket is F, who likes swimming.
B is female, and the person who likes cricket is male.

How is A related to E?

Options: A. Father
B. Mother
C. Grandfather
D. Grandmother

Answer: C. Grandfather

Explanation:

A is married to D, who likes badminton.
B and C are married, with C (male) liking football and B (female) liking tennis.
Their children are F (Swimming) and E.
F and E are grandchildren of A, who likes cricket.
Since A is male, he is the grandfather of E.

Q10: Using the same family structure and given sports preferences, what sport does A like?

Options: A. Swimming
B. Badminton
C. Football
D. Cricket

Answer: D. Cricket

Explanation:

Two married couples: A & D, B & C.
C (male) likes football, and his wife B (female) likes tennis.
A is married to D, who likes badminton.
The grandchild of the person who likes cricket is F.
Since A is the grandfather, he must be the one who likes cricket.

Question 11:

A family consists of six members: A, B, C, D, E, and F. Each member has a unique preference for a sport among Golf, Cricket, Football, Tennis, Badminton, and Swimming.

Given Information:

The family has two married couples.
C, who likes Football, is married to the person who likes Tennis.
B is either the father or mother of F and E.
A is married to D, who likes Badminton.
The grandchild of the person who likes Cricket is F, who enjoys Swimming.
B is a female, whereas the person who likes Cricket is male.

Question: Who among the family members likes Golf?

(A) A
(B) D
(C) C
(D) E

Answer: E

Explanation:

From Statement (4), A and D form one married couple, with D liking Badminton.
From Statement (2), C (Football) is married to someone who likes Tennis. Since A is already married to D, B must be the one married to C, making B the one who likes Tennis.
Statement (3) tells us B is either the mother or father of F and E. From Statement (6), B is female, meaning she is the mother of F and E.
Statement (5) states that F, who likes Swimming, is the grandchild of the person who likes Cricket. Since A is the only male left and part of a married couple, A must be the one who likes Cricket.
This means A and D are the grandparents of F and E, making B and C the parents.
Since we have identified the preferences of A (Cricket), D (Badminton), C (Football), B (Tennis), and F (Swimming), the only remaining sport is Golf, which must be liked by E.

Question 12:

Using the same family structure and given information:

Question: How many female members are there in the family?

(A) Cannot be determined
(B) Two
(C) Three
(D) Four

Answer: Cannot be determined

Explanation:

From Statement (6), B is identified as female.
From Statement (4), A (male) is married to D, but the gender of D is not explicitly mentioned.
Since B and C are a married couple, and B is female, C must be male.
F and E are the children of B and C, but their genders are not specified.
Because we do not have explicit confirmation of the genders of D, F, and E, we cannot determine the exact number of females in the family.

Question 13: Identifying the Maternal Uncle

Given relationships:

A + B → A is the mother of B.
A - B → A is the brother of B.
A % B → A is the father of B.
A × B → A is the sister of B.

Question: Which of the following expressions indicates that P is the maternal uncle of Q?

A) Q - N + M × P
B) P + S × N - Q
C) P - M + N × Q
D) Q - S % P

Answer: C) P - M + N × Q

Explanation:

P - M → P is the brother of M.
M + N → M is the mother of N.
N × Q → N is the sister of Q.

Since P is the brother of Q’s mother, P is the maternal uncle of Q.

Question 14: Identifying the Paternal Uncle

Given relationships:

A × B → A is the brother of B.
A ÷ B → A is the father of B.

Question: Which of the following expressions represents "A is the paternal uncle of K"?

A) K × P ÷ M × A
B) K × B ÷ N × A × D
C) A × L ÷ R × K
D) Both A and B

Answer: B) K × B ÷ N × A × D

Explanation:

K × B → K is the brother of B.
B ÷ N → B’s father is N.
N × A → N is the brother of A.
A × D → A is the brother of D.

Since N is the father of K and A is N’s brother, A is the paternal uncle of K.

Question 15: Relationship Between D and N

Given relationships:

X $ Y → X is the father of Y.
X # Y → X is the mother of Y.
X × Y → X is the sister of Y.

Question: How is D related to N in the expression "N # A $ B × D"?

A) Nephew
B) Grandson
C) Granddaughter
D) Cannot be determined

Answer: D) Cannot be determined

Explanation:

N # A → N is the mother of A.
A $ B → A is the father of B.
B × D → B is the sister of D.

Thus, D is either the son or daughter of A, making D the grandchild of N. However, D’s gender is not specified, so we cannot determine whether D is a grandson or granddaughter.

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