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 ]1 Y' d3 O3 t, {" h. _
假設C和B是同一顏色, 那D就會立刻知道自己的顏色，
0 @5 O8 _: S0 m/ Otvb now,tvbnow,bttvb而不會過了一會才作答，C發現D不知道答案時就表示tvb now,tvbnow,bttvb5 @6 r; T) c6 F7 z0 E
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.
% g  T9 `6 F2 N: V& ]5.39.217.77:8898That means D is not sure the answer by seeing one white and one black.
' D. L: Y3 H+ e# Q/ i$ HC 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 # t; e7 z3 K, d  C* H
tvb now,tvbnow,bttvb- y/ N9 m$ I8 I  z% `
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?