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# A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. Who is the father of Q ?

$(A) \; P \\(B)\; R \\(C)\; X \\(D)\;Z$

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Solution :
Q is the son of R but R is not the mother.
So, R is the father of Q. P is married to R.
So, P is the wife of R and the mother of Q.
X is the daughter of P and hence of R and so, she is the sister of Q.
Y is the brother of R and Z is the brother of P.
R is the father of Q.