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。9 T) m& I- v1 a6 C1 y- p
假設C和B是同一顏色, 那D就會立刻知道自己的顏色，5.39.217.77:8898% ~7 t- T+ c6 o) N& ~" D
而不會過了一會才作答，C發現D不知道答案時就表示
  p4 Q# Y/ [* F5.39.217.77:8898C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.5.39.217.77:8898. C0 l6 R$ T2 x: }* A5 k
That means D is not sure the answer by seeing one white and one black.公仔箱論壇! h8 P# Q6 W! ?3 b. i
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
4 t# X1 K7 f5 m- O+ s4 \公仔箱論壇
2 v  H1 m0 {  L4 q5 @. L+ vC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?