Data Sufficiency — Relationships: How is J related to P? Statement I: M is brother of P and T is sister of P. Statement II: P's mother is married to J's husband, who has one son and two daughters. Decide which statements are sufficient to answer the question. Choose the correct sufficiency option.
Verbal Reasoning
Data Sufficiency
Difficulty: Medium
Choose an option
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AStatement I alone is sufficient, but Statement II alone is not sufficient.
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BStatement II alone is sufficient, but Statement I alone is not sufficient.
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CBoth statements I and II together are sufficient, but neither alone is sufficient.
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DEither statement I or statement II alone is sufficient.
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EEven both statements I and II together are not sufficient.
Answer
Correct Answer: Statement II alone is sufficient, but Statement I alone is not sufficient.
Explanation
Statement IGives P's siblings but says nothing about J ⇒ insufficient.
Statement II"P's mother is married to J's husband" ⇒ J's husband and P's father are the same person. Under standard monogamy assumption in family puzzles, this implies J is P's mother.Extra clause "who has one son and two daughters" is consistent with P's sibling set but not required for identifying J's relation.
Final AnswerStatement II alone is sufficient, but Statement I alone is not sufficient.