A and B are children of D. Who is the father of A? To answer this question which of the statements (1) and (2) is necessary? (1) C is the brother of A and the son of E. (2) F is the mother B.

Vaibhav Shukla • 4.53K Points
Extraordinary Reasoning

Q. A and B are children of D. Who is the father of A? To answer this question which of the statements (1) and (2) is necessary? 
(1) C is the brother of A and the son of E. 
(2) F is the mother B.

(A) Only (1)
(B) Only (2)
(C) Either (1)
(D) (1) and (2) both

Correct Answer - Option(A)

Explanation by: Vaibhav Shukla

A and B are children of D. From (1), C is the brother B and son of E. Since, the sex of D and E are not known. Hence (1) is not sufficient to answer the question. From (2). F is the mother of B. Hence, F is also the mother of A. Hence D is the father of A. Thus, (2) is sufficient to answer the question.

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