Discussion of Question with ID = 051 under Blood-Relations

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'P ∆ Q' means that P is the mother of Q, 'P [] Q' means that P is the father of Q, 'P # Q' means that P is the sister of Q. Which of the following represents 'M is the daughter of R' ?


R [] M ∆ N.


R ∆ N [] M.


R # M [] N.


Data inadequate.

Ans: a

R [] M means R is the father of M, but M could be male or female. Next R∆N means R is mother. Hence M is female, and therefore, daughter of R.

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