Blood Relation

1.	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 Answer & Explanation Answer: Option D 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.

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2.	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 Answer & Explanation Answer: Option C 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.

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3.

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 Answer & Explanation Answer: Option D 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.

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4.	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 Answer & Explanation Answer: Option D 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.

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5.	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 Answer & Explanation Answer: Option A Explanation: The father of the boy's uncle → the grandfather of the boy and daughter of the grandfather → sister of father.