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。
1 Q, I; [2 `4 @6 Y假設C和B是同一顏色, 那D就會立刻知道自己的顏色，1 I$ J8 q5 i& E$ U; v
而不會過了一會才作答，C發現D不知道答案時就表示! K  t9 `! i' u1 s- O. [/ U( Z
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.; q- L: I1 e6 m9 P$ |! a0 Y. G
That means D is not sure the answer by seeing one white and one black.5.39.217.76! q- W9 w& b3 c& S) R- n& P; S
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 tvb now,tvbnow,bttvb+ |/ V; m- d1 g/ [/ C. ~
5.39.217.760 w; G* M" Z* g' C) |4 Z
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?