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。
* q- l9 ]+ l: j: w9 g5.39.217.77假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
. Y1 e. o; e* x  F而不會過了一會才作答，C發現D不知道答案時就表示
* z7 Q) E  Z" o/ P6 c! K5.39.217.77C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.
& w) ], X% n5 B4 y3 btvb now,tvbnow,bttvbThat means D is not sure the answer by seeing one white and one black.- I$ |8 Z, Y, v5 F2 O
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 . b9 @" A  {. H  Y0 ^5 {

! Q4 ?3 N2 f/ Z4 p* Q. p+ ~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?