X is the brother of Y and P, Z is the mother of Y, and Q is the father of X. Which one of the following…
"Y is the brother of P" cannot be settled. X, Y and P are siblings, but the gender of Y is never stated, so Y may be P's brother or sister. Since X is male and Z is the…
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X is the brother of Y and P, Z is the mother of Y, and Q is the father of X. Which one of the following statements can be neither definitely confirmed nor definitely ruled out from this information?
Answer and explanation
Correct answer A
"Y is the brother of P" cannot be settled. X, Y and P are siblings, but the gender of Y is never stated, so Y may be P's brother or sister. Since X is male and Z is the mother of his sibling Y, X is the son of Z; Q is the father of X, so Z is the wife of Q. "X is the father of P" is definitely false, because X is P's brother.
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Common Management Admission Test (CMAT)