P is the brother of Q and R. S is R's mother. T is P's father. Which of the following statements cannot be definitely true ?
A) T is Q's father
B) S is P's mother
C) P is S's son
D) Q is T's son
Answer: D) Q is T's son
Explanation:
P, Q, R are children of same parents. So. S who is R's mother and T, who is R's father will be mother and father of all three.
However, it is not mentioned whether Q is male or female So, D cannot be definitely true.
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