P is the brother of Q and R. S is R's mother. T is P's father. How many of the following statements are…
P is the brother of Q and R. S is R's mother. T is P's father. How many of the following statements are definitely true?
I. S and T are a couple.
II. Q is T's son.
III. T is Q's father.
IV. S is P's mother.
V. R is T's daughter.
VI. P is S's son.
Select the correct answer using the code given below:
Only two
Only three
Only four
Only five
Solution
P is brother of Q and R; S is R's mother (so S is mother of P, Q, R); T is P's father (so T is father of P, Q, R). Checking: I. S and T are a couple - definitely true. III. T is Q's father - true. IV. S is P's mother - true. VI. P is S's son - true (P is male, brother). II. 'Q is T's son' - Q's gender is not given, so not definite. V. 'R is T's daughter' - R's gender is not given, not definite. Definitely true: I, III, IV, VI - four statements.