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。
& p" i8 y, _) A( Y3 z1 P5.39.217.76假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
! U$ g2 n$ J8 U1 u而不會過了一會才作答，C發現D不知道答案時就表示
; m/ D+ A+ P$ ^$ L1 B$ [! k- J; J# }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.
  ~9 {$ c2 l6 nThat means D is not sure the answer by seeing one white and one black.
1 }2 S* K6 d. _1 n' v7 Q! v( ?公仔箱論壇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 5.39.217.762 S1 S0 d: w( Q

0 w: P4 y* }8 H8 L) _9 o5.39.217.76C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?