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Coded Blood Relations

CMAT 2021 · Logical Reasoning · Medium · Blood Relations

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If A # B means A is the mother of B A BmeansAisthefatherofBAA∗BmeansAisthesonofBA@BmeansAisbrotherofBandA!BmeansAisthedaughterofBIntheexpressionP B means A is the father of B A % B means A is sister of B A * B means A is the son of B A @ B means A is brother of B and A ! B means A is the daughter of B In the expression PQ#R@S, how is R related to P?

  1. A.

    Grandson

  2. B.

    Great Grandson

  3. C.

    Son

  4. D.

    Daughter

Answer

A

Explanation

P QQ\impliesP is father of Q. Q # R\impliesQismotherofR.R@SQ is mother of R. R @ S\impliesRisbrotherofS(soRismale).Thus,RisthesonofQ,andQisthedaughterofP.Therefore,RisthegrandsonofP. R is brother of S (so R is male). Thus, R is the son of Q, and Q is the daughter of P. Therefore, R is the grandson of P.

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