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If 'A + B' means A is the father of B, 'A − B' means A is the wife of B, and 'A × B' means A is the brother of B, then what does P − Q + R × S tell you about P and S?

Competition practiceBlood Relations
  • AP is the mother of S
  • BP is the aunt of S
  • CP is the sister of S
  • DP is the grandmother of S

Step-by-Step Solution

P − Q: P is Q's wife. Q + R: Q is R's father. R × S: R is S's brother, so Q is also S's father. P, Q's wife, is S's mother.
Answer: A) P is the mother of S

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