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。
4 Z9 B$ |$ }9 {- q! O6 p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. ~7 b$ S+ X0 a  E3 l6 y
而不會過了一會才作答，C發現D不知道答案時就表示公仔箱論壇  G' L/ i& w0 M/ x; M
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., Y) O; t7 t6 `6 \1 x2 R
That means D is not sure the answer by seeing one white and one black.
% ?' S+ X3 B/ I0 N! J3 `; Mtvb now,tvbnow,bttvbC 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
& @$ C, ?: s/ _4 C0 d9 t
, ^4 |8 w$ v+ V# e- oC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?