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。
" I0 A" {; P+ l7 m& w假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
1 \' z4 o# Q' g8 Z+ |: \而不會過了一會才作答，C發現D不知道答案時就表示
1 K# c5 R/ L1 WC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.! n1 H3 v# K8 ]6 ~
That means D is not sure the answer by seeing one white and one black." _, w4 W3 D( x6 B" L5 h6 P
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,bttvb8 X$ x5 S2 a- u, Z0 j4 g

: ^& H% {1 r$ N2 nC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?