# Blood Relation Set 18

Q1. Pointing to a photograph of a boy Suresh said, “He is the son of the only son of my mother.” How is Suresh related to that boy?

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

Explanation:

The boy in the photograph is the only son of the son of Suresh’s mother i.e., the son of Suresh. Hence, Suresh is the father of boy.

Q2. 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 x P
B. P + S x N – Q
C. P – M + N x 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.

Q3. 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. Cannot be 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.

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.

Q4. If A + B means A is the brother of B; A – B means A is the sister of B and A x B means A is the father of B. Which of the following means that C is the son of M?

A. M – N x C + F
B. F – C + N x M
C. N + M – F x C
D. M x N – C + F

Explanation:

M x N → M is the father of N

N – C → N is the sister of C

and C + F → C is the brother of F.

Hence, M is the father of C or C is the son of M.

Q5. Introducing a boy, a girl said, “He is the son of the daughter of the father of my uncle.” How is the boy related to the girl?

A. Brother
B. Nephew
C. Uncle
D. Son-in-law

Explanation:

The father of the boy’s uncle → the grandfather of the boy and daughter of the grandfather → sister of father.

Q6. Pointing to a photograph Lata says, “He is the son of the only son of my grandfather.” How is the man in the photograph related to Lata?

A. Brother
B. Uncle
C. Cousin

Explanation:

The man in the photograph is the son of the only son of Lata’s grandfather i.e., the man is the son of Lata’s father. Hence, the man is the brother of Lata.

Q7. If A + B means A is the brother of B; A x B means A is the son of B; and A % B means B is the daughter of A then which of the following means M is the maternal uncle of N?

A. M + O x N
B. M % O x N + P
C. M + O % N
D. None of these

Explanation:

Because the sex of O is not known.

Q8. If D is the brother of B, how B is related to C? To answer this question which of the statements is/are necessary?

The son of D is the grandson of C.
B is the sister of D.
A. Only 1
B. Only 2
C. Either 1 or 2
D. 1 and 2 both are required

Explanation:

Given: D is the brother of B.

From statement 1, we can detect that D is son of C (son of D is the grandson of C).

From statement 2, we can detect that B is ‘Female’ (sister of D).

Therefore, B is daughter of C.

Q9. If A + B means A is the father of B; A – B means A is the brother B; A % B means A is the wife of B and A x B means A is the mother of B, which of the following shows that M is the maternal grandmother of T?

A. M x N % S + T
B. M x N – S % T
C. M x S – N % T
D. M x N x S % T

Explanation:

M x N → M is the mother of N

N % S → N is the wife of S

and S + T → is the father of T.

Hence, M is the maternal grandmother of T.

Q10. Pointing to a photograph. Bajpai said, “He is the son of the only daughter of the father of my brother.” How Bajpai is related to the man in the photograph?

A. Nephew
B. Brother
C. Father
D. Maternal Uncle