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。公仔箱論壇+ Q$ U  N* G9 H# i
假設C和B是同一顏色, 那D就會立刻知道自己的顏色，5.39.217.77:88987 w- G1 _" k+ V
而不會過了一會才作答，C發現D不知道答案時就表示
+ Y) C' S; r" G) I, ^$ _. kC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.
  |% e/ [6 c# ^2 r! Rtvb now,tvbnow,bttvbThat means D is not sure the answer by seeing one white and one black.
" F, I) e( @9 @- t! w- ?$ h6 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 5.39.217.77:88980 S2 b& M& ^( r* D& a- |
' X2 i- L! c1 `/ |
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?