C knows the answer by deducing D is not yelling out the answer.3 S& h; K0 ~$ g5 r- N1 ~9 Y8 J5 D2 Z" E
That means D is not sure the answer by seeing one white and one black. + P0 Q5 T. c* d2 rTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。C saw B is wearing the white, hence he is wearing the black
C, because he saw B's hat is white and he knows D can see the color of B's and his hat. If B and his hat has the same color, D would speak out. But D kept silent, so C knows that his hat's color must be different.
發表於 2013-2-10 08:55 PM
| 
好難哦~~
