The given question is based on the following information: J $ K means ‘J is…

2023

The given question is based on the following information: J $ K means ‘J is the father of K’; J # K means ‘J is the husband of K’; J ⊕ K means ‘J is the daughter of K’; J ⊙ K means ‘J is the wife of K’. If expression ‘L # N ⊕ M ⊙ P $ Q’ is true, then which of the following statement is not correct?

  1. A.

    ‘M’ is the mother of ‘Q’

  2. B.

    ‘P’ is the father of ‘N’

  3. C.

    ‘L’ is brother of ‘Q’

  4. D.

    ‘N’ is the sister of ‘Q’

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Correct answer: C

From the expression: N is daughter of M (N ⊕ M), M is wife of P (M ⊙ P) and P is father of Q (P $ Q). So M is mother of Q and N is sister of Q; P is father of N by virtue of being M’s husband. L is husband of N, therefore L is brother-in-law of Q, not Q’s brother — so statement (3) is incorrect.

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