Who is M to P? Decide which statements are necessary. Facts given: M is the father of N, and N is the son of V. Which additional statement(s) are needed to determine the relation of M to P? (1) P is the brother of V. (2) The daughter of N is the granddaughter of V. Choose the correct necessity.
Verbal Reasoning
Blood Relation Test
Difficulty: Easy
Choose an option
Answer
Correct Answer: Only (1)
Explanation
Core deduction N is son of V ⇒ V is a parent of N. M is father of N ⇒ M and V are the two parents of N ⇒ M is the husband of V.
Determine M ↔ P If (1) P is brother of V, then P is M’s brother-in-law. Relation is fixed.
Why (2) is not needed “Daughter of N is granddaughter of V” is a tautology given N is V’s child; it adds no new information about P. Hence only (1) is necessary.