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If P + Q means P is the brother of Q; P x Q means P is the father of Q and P - Q means P is the sister of Q, which of the following relations shows that I is the niece of K?

  • A.K + Y + Z - I
  • B.K + Y x I - Z
  • C.Z - I x Y + K
  • D.K x Y + I - Z

Answer: B

Correct answer: K + Y x I - Z

K + Y makes K the brother of Y; Y × I makes Y the father of I; I – Z makes I the sister of Z, which shows I is female. A brother’s daughter is his niece, so I is K’s niece.

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