Consider the following including the Question and the Statements: There are 5 members A, B, C, D, E in a family. Question: What is the relation of E to B ? Statement-1: A and B are a married couple. Statement-2: D is the father of C. Statement-3: E is D’s son. Statement-4: A and C are sisters. Which one of the following is correct in respect of the above Questions and Statements?

1. A. Statement-1, Statement-2 and Statement-3 are sufficient to answer the Question.
2. B. Statement-1, Statement-3 and Statement-4 are sufficient to answer the Question.
3. C. All four statement together are sufficient to answer the Question.
4. D. All four statements are not sufficient to answer the Question.

Answer: C

Explanation

Let’s deduce the relationships using all statements:
1. A and B are a married couple.
2. D is the father of C.
3. E is D’s son.
4. A and C are sisters.

From (2) and (3), D is the father of both C and E, making C and E siblings. From (4), A and C are sisters. This means A is also D’s daughter. Since A is D’s daughter and E is D’s son, A and E are siblings. From (1), A and B are a married couple. If A is female (sister of C), then B must be her husband. Since E is A’s brother, E is B’s brother-in-law. All four statements are necessary to establish these connections and determine the precise relationship between E and B.