Q. 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 Question and Statements?
(a) Statement-1, Statement-2 and Statement-3 are sufficient to answer the Question.
(b) Statement-1, Statement-3 and Statement-4 are sufficient to answer the Question.
(c) All four statements together are sufficient to answer the Question.
(d) All four statements are not sufficient to answer the Question.
Correct Answer: (c) All four statements together are sufficient to answer the Question.
Question from UPSC Prelims 2023 CSAT
Explanation :
5 members A, B, C, D, E in a family
A and B are a married couple, so they are husband and wife.
D is the father of C, so C is the child of D.
E is D’s son, so E is the brother of C.
A and C are sisters, so they have the same parents.
Finally, I would use the family tree and the definitions to find the relation of E to B. For example:
E is the brother of C, who is the spouse of B, so E is the brother-in-law of B.
Therefore, the correct answer is © All four statements together are sufficient to answer the Question.