CombinatoricsDifficulty 2.0JuniorFind the answerUnited Kingdom
Jokers always lie. Clowns always tell the truth. A group of four, each of whom is a Joker or a Clown, make the following statements about each other: P says, "Q always lies"; Q says, "R always lies"; R says, "P always tells the truth"; S says, "Exactly two of P, Q and R are Jokers". How many of P, Q, R and S are Clowns?
(A) 0 (B) 1 (C) 2 (D) 3 (E) 4
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