wingdragon89

C.....

中國籍男子

C答中了。A和B一定答不到因看不到其他人。
7 s/ @3 G/ |6 P假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
5 K9 p9 j, ^* m3 ~而不會過了一會才作答，C發現D不知道答案時就表示
) n. Z# X, e* B- |" aTVBNOW 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和B是不同顏色，那麼C只要答和B相反的顏色就對了。

南極

WHY???

mavvvv

i want to know the answer

waha1ha1

C knows the answer by deducing D is not yelling out the answer.
% B7 d% u/ t+ p2 D0 NThat means D is not sure the answer by seeing one white and one black.
  T  k* X6 D" |0 b; BTVBNOW 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

abilam123

thank you

jonnyfang

see this before but forgot answer

sws2108

係點解呢？

wong32159

thank a lot

rockylok

dfdfd

KekHao

我觉得是D 呢。。。

formax

好難哦~~

bluekid2030

1# wasimasterQ
. z) [5 N3 G3 u3 ^+ s5 k& B+ w! MTVBNOW 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。
4 F; ^+ J* N8 H0 u! Q' M3 T9 N) {C同B都答到

roembro

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.

morrislch

may i see the answer?