Q1. 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
(E) None of these
EXPLANATION
(A)
The father of the boy’s uncle → the grandfather of the boy and daughter of the grandfather → sister of father.
Q2. 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
(E) Grandfather
EXPLANATION
(D)
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.
Q3. 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
(E) N + P – Q
EXPLANATION
(C)
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.
Q4. 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) Aunt
(E) Cannot be determined
EXPLANATION
(D)
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.
Q5. 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
(E) F + C – M
EXPLANATION
(D)
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.
Q6. M is the father of N who is the son of V. In order to know the relation of M to P, which of the statement/statements is/are necessary?
- P is the brother of V.
- The daughter of N is the granddaughter of V.
(A) Only (1)
(B) Only (2)
(C) Either (1) or (2)
(D) (1) and (2) both
(E) Neither (1) or (2)
EXPLANATION
(A)
M is the father of N and N is the son of V.
Hence, V is the mother of N.
From (1), P is the brother of V
Therefore, M is the brother-in-law of P because V is the wife of M.
From (2), the daughter of N, is the granddaughter of V. From this we do not get any relation of M to P.
Q7. A is the son of C; C and Q are sisters; Z is the mother of Q and P is the son of Z. Which of the following statements is true?
(A) P and A are cousins
(B) P is the maternal uncle of A
(C) Q is the maternal grandfather of A
(D) C and P are sisters
(E) None of these
EXPLANATION
(B)
C and Q are sisters and A is the son of C. Hence, C is the mother of A or Z is the mother Q.
Hence, Z is the maternal grandmother of A. P is the son of Z. Hence, P is the maternal uncle of A.
Q8. Pointing to a gentleman, Deepak said,” His only brother is the father of my daughter’s father.” How is gentleman related to Deepak ?
A.Brother
B.Father
C.Grand Father
D.Uncle
E. Cannot be determined
EXPLANATION
(D)
