Question

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 1

The correct option is D Q is T's son

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.