Q is the brother of R; P is the sister of Q; T is brother of S; S is the daughter of R. Who are the cousins of Q ?

Q is the brother of R; P is the sister of Q; T is brother of S; S is the daughter of R. Who are the cousins of Q ? Correct Answer R and P

Q's brother is R, so R is the cousin of Q.
P is Q's sister, and since R is the brother of Q, P is also the cousin of Q.

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