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In a certain code, 'P × Q' means P is the father of Q, 'P + Q' means P is the sister of Q, and 'P - Q' means P is the wife of Q. In the expression 'A × B + C - D', how is A related to D?

Competition practiceBlood Relations
  • AFather-in-law
  • BFather
  • CUncle
  • DBrother

Step-by-Step Solution

A is the father of B, B is the sister of C (so C is also A's child), and C is the wife of D, making D A's son-in-law and A the father-in-law of D.
Answer: A) Father-in-law

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