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 _- R5 j+ s* p& i6 O) x. i假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
8 V9 _, @& y/ |" s( P2 {  j0 W& l而不會過了一會才作答，C發現D不知道答案時就表示* q" u! d4 [1 v
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.
( l- e. ]6 t* _公仔箱論壇That means D is not sure the answer by seeing one white and one black.
) G3 w  N* F& ]; o8 E0 H8 T& tC 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 公仔箱論壇3 l, {; |& \- _0 z2 U) C. Z$ r

* i' {+ W9 Y4 e, ~6 utvb now,tvbnow,bttvbC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?