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。
% T! v9 i; T9 t( J: _假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
; E: X4 j& k0 }& T9 _# b* zwww3.tvboxnow.com而不會過了一會才作答，C發現D不知道答案時就表示
3 p# `1 |2 A% @' `+ T2 fC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.
! f# \$ O% O5 S# n- p4 Ztvb now,tvbnow,bttvbThat means D is not sure the answer by seeing one white and one black.: D2 X" p/ S0 I0 L: ~
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 E( k! W/ n/ \: j  d' M: N公仔箱論壇- Q' M& Y3 u4 Z$ H& D3 X
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?