You are given a questions and two statements.Identify which of the statements is / are necessary / sufficient to answer the question.
Question:
X is Y’s brother.
Z is mother of Y.
How is Y related to X?
Statements:
1. Z has only 1 son and 1 daughter
2. X is only son of V who is father of Y has 2 children’s1
Both 1 and 2 together are sufficient
2
2 alone is sufficient while 1 alone is not sufficient
3
1 alone is sufficient while 2 alone is not sufficient
4
Either 1 or 2 alone is sufficient