Question 13
A phone is lost in a class. The suspects are An, Binh and Cuong. An says: “I didn't take it. Binh took it.” Binh says: “Cuong took it. An didn't.” Cuong says: “I didn't take it.” Exactly one person told the truth and the other two lied. Who took the phone?
The following source mathematical images preserve the printed option/formula/figure variants; text and choices above or below provide clean typesetting.
The following source mathematical images preserve the printed option/formula/figure variants; text and choices above or below provide clean typesetting.