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。
$ ?5 c+ _2 b# c9 m6 x假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
7 A# C5 k3 c5 S0 v2 \tvb now,tvbnow,bttvb而不會過了一會才作答，C發現D不知道答案時就表示
2 B& e+ K( n7 cTVBNOW 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.
$ r6 C3 M; U  w3 G& L  [+ T$ b  g% KTVBNOW 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。That means D is not sure the answer by seeing one white and one black.
5 O, `" P. u+ Z+ V4 K2 SC 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
' |$ y! F8 m% k) n# V2 D& ?TVBNOW 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。
. n. y2 o3 p! S& v7 L5 k5.39.217.77:8898C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?