Data Sufficiency — family relations: determine how T is related to K Statements: I. K has two sons; one of the sons is A. II. The mother of T has only two sons — A and B. Choose the correct sufficiency option.
Verbal Reasoning
Data Sufficiency
Difficulty: Easy
Choose an option
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AI alone is sufficient while II alone is not sufficient
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BII alone is sufficient while I alone is not sufficient
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CEither I or II is sufficient
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DNeither I nor II is sufficient
Answer
Correct Answer: Neither I nor II is sufficient
Explanation
Reasoning I: K is a parent of A (and another son). Relationship of T to K is unknown ⇒ insufficient. II: T's mother has sons A and B. T could be A, B, or a daughter; the link to K is unknown ⇒ insufficient. Together, A links the two statements, but T's identity (A/B/daughter) and whether K is the same parent as T's mother are both undetermined. Multiple possibilities remain.
Answer Neither I nor II is sufficient.