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Question

Difficulty: MediumBlood Relations

A multi-generational family consists of eight members: K, L, M, N, O, P, Q, and R. Review the following relational conditions to determine their family tree:

• The family contains exactly two married couples.
• K is the paternal grandfather of R.
• P is the mother of Q and has exactly one sibling, N, who is male.
• O is the brother of M and the son of L.
• M is the unmarried aunt of Q.
• Q is the only sister of R.
• L has exactly two children.

Based on these conditions, match the individuals on the left with their correct relationship to R on the right.

  • Individual: NMaternal Uncle
  • Individual: LPaternal Grandmother
  • Individual: MPaternal Aunt
  • Individual: QSister

Answer

N matches to Maternal Uncle, L matches to Paternal Grandmother, M matches to Paternal Aunt, and Q matches to Sister.
Based on the family tree deduction, the relationships accurately reflect the generation and maternal/paternal lineage defined in the conditions. N is the mother's brother (Maternal Uncle), L is the father's mother (Paternal Grandmother), M is the father's sister (Paternal Aunt), and Q is directly stated to be the sister.

Step-by-Step Solution

1
Identify R's parents by connecting the grandfather and mother clues.
K is the paternal grandfather, meaning K's son is R's father. P is the mother of Q and R (since Q and R are siblings). Therefore, P is married to K's son.
Establishing the core nuclear family helps lock in generation 2.
2
Determine the identity of R's father and paternal grandmother.
L is the mother of O. Since K is the paternal grandfather and L has two children, K and L are the married grandparents (Generation 1). O must be their son, making O the father of R.
This connects the paternal side of the family tree to R.
3
Map the siblings of R's parents.
M is O's sister (aunt of Q and R), making her the paternal aunt. N is P's brother, making him the maternal uncle.
Clarifies the extended family relationships on both the mother's and father's sides.
4
Confirm generation 3 relationships.
Q is explicitly stated to be the sister of R.
Finalizes the matching pairs based on the complete family tree.

Key Concept

Blood Relations Family Tree Deduction
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Topics

Blood Relations

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