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。
0 b8 A3 l1 t; R" Y5.39.217.76假設C和B是同一顏色, 那D就會立刻知道自己的顏色，8 C# B  o1 x1 F: R; i# Y- t' N+ Y# i
而不會過了一會才作答，C發現D不知道答案時就表示
5 I- o# T6 m* |' r7 J; G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.5.39.217.76# z4 ]0 d, @) N; R
That means D is not sure the answer by seeing one white and one black.3 z( w$ m3 R: f9 N! W/ S. W6 i2 L! K4 @
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 2 h" S' W3 K) N) K' W

% T. H: F1 N; N3 h5 p5.39.217.76C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?