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。
" F! D8 T- O: k: {' J2 `假設C和B是同一顏色, 那D就會立刻知道自己的顏色，" q" o2 @. B6 k6 Q! I) {
而不會過了一會才作答，C發現D不知道答案時就表示6 R  [# q5 I! I9 }# s" i2 s
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.. h2 E$ ~- }6 \( e9 }. }6 S% M& Z
That means D is not sure the answer by seeing one white and one black.$ l$ q- f" \/ [1 @! k8 F' ?/ @- |" 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 . `& s5 R- I( {0 d. q* X
. r0 P8 f$ m. u  \' M$ y* @: [* V
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?