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。
2 \- j: L- J% y- D! x0 m! S假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
( b' R1 x( Y: G6 `1 Q& _而不會過了一會才作答，C發現D不知道答案時就表示* ^+ V+ W  ^# Q* d' b
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.tvb now,tvbnow,bttvb5 W6 |# Z' D: |
That means D is not sure the answer by seeing one white and one black.公仔箱論壇/ d" e. \- G5 I/ P; c5 K$ }
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 tvb now,tvbnow,bttvb  |9 b0 Y& \7 b$ Q) }
6 f5 [8 h# K: P* n' N
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?