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      Question

      In a certain code language:  - A & B means 'A

      is the son of B',  - A + B means 'A is the brother of B',  - A # B means 'A is the wife of B',  - A ¸ B means 'A is the father of B'.                Question: How is M related to L if 'P + M ¸ K # L & E'? 
      A Wife's mother Correct Answer Incorrect Answer
      B Sorts wife Correct Answer Incorrect Answer
      C Wife's father Correct Answer Incorrect Answer
      D Daughter's husband Correct Answer Incorrect Answer

      Solution

      1. P + M
        → P is the brother of M
      2. M ¸ K
        → M is the father of K
      3. K # L
        → K is the wife of L
        → So, L is the husband of K
      4. L & E
        → L is the son of E
      • P is M’s brother
      • M is K’s father
      • K is L’s wife
      • So, L is M’s son-in-law (because M is the father of K, and K is married to L)
      • That means M is L’s father-in-law
      • And M is his wife’s father
      Answer: C. Wife's father

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