Decoding the Relationship Puzzle

Let's break down the relationships described in the question step by step to determine how the lady is related to the man.

Analyzing the Man's Statement

The man states: “Your mother’s husband’s sister is my aunt (Bua).”

Step-by-Step Relationship Analysis

• Consider the lady's perspective:
  • "Your mother" refers to the lady's mother.
  • "Your mother's husband" is the lady's father.
  • "Your mother's husband's sister" is the lady's father's sister. This person is the lady's paternal aunt.
• Consider the man's perspective:
  • "My aunt (Bua)" refers to the sister of the man's father.
• Connecting the relationships:
  • The statement establishes that the lady's paternal aunt (her father's sister) is the same person as the man's paternal aunt (his father's sister).
  • Therefore, Lady's Father's Sister = Man's Father's Sister.
• Deduction:
  • If two individuals share the same sister, it implies that their fathers must be the same person.
  • Thus, the lady's father is the same person as the man's father.
  • If they share the same father, the lady and the man are siblings.

Conclusion

Since the lady and the man share the same father, the lady is the man's Sister.