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。5 f% n4 ^( h0 T' l# s- x
假設C和B是同一顏色, 那D就會立刻知道自己的顏色，2 p/ K& n+ n. D) a( `, {: v" d, M! w
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,bttvb" H+ I# Z( O$ @
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.
0 d6 l, u- C- Q8 b% i9 ?That means D is not sure the answer by seeing one white and one black.
6 m2 H2 H) y+ v7 l$ t5.39.217.76C 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
6 e, o4 c, b$ _6 r8 s( G" P( D1 Y) {+ T, o% C: {; _  d2 w' g" u' ?1 y
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?