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。
3 }" g& S( D- u6 E$ `- l3 G, b假設C和B是同一顏色, 那D就會立刻知道自己的顏色，公仔箱論壇6 _% m' f8 U/ ^: g/ k: H* O
而不會過了一會才作答，C發現D不知道答案時就表示
  a: h  ^3 t9 o" c公仔箱論壇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.
) G2 w1 u3 c- ]7 z. \tvb now,tvbnow,bttvbThat means D is not sure the answer by seeing one white and one black.
/ t9 v! G* r. Q7 ]- f) e- XC 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 tvb now,tvbnow,bttvb4 o6 U% O1 S1 X0 c! @6 L
公仔箱論壇2 T7 b+ ?5 Y1 z3 U; e
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?