howardc888

Answer is C.  Many people already explained it.  :)

susu_nel

D应该先答对。D可以看见B,C是什么颜色，他就会有1/2机会答对

我是步惊云

interesting questions

kammandang

1# wasimasterQ 公仔箱論壇) x0 ^9 w) u% x) A2 n+ [
" K- d3 H. x, q# {  j' u9 ]. b1 a, ^
is it b??

roymak82

thanks

iii222

I think is C.
' \  `& ]/ f% k" z! Htvb now,tvbnow,bttvb公仔箱論壇7 H1 k" i  o! A# I
Since A & B will have no way to know, and D did not know the answer.0 ?- Y! n& t$ ~$ a% ]3 C

" C! c$ A, y0 Q) j# G% B$ \* L% b8 A5 \tvb now,tvbnow,bttvbThis is a tough question for grade 1.  
( s0 B: ]+ M$ ?  m' g8 F" |/ M: BTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。
7 V/ }; S$ F' @, Y/ E$ c公仔箱論壇I most likely cannot answer it within 5 minutes when I was that young.  T4 ~0 V- s9 p1 u! u8 y
os.tvboxnow.com- {6 l# |! e8 ]
Wow, really enjoy this question.  Thank you for sharing.

mirrorabc

Thanks for sharing

GN2160659

thanks for sharing

greenland

answer pls...

wa929

thanks for good question

edwin_8888

thank for sharing

24456430

看不到图片，做不了题目

shijin

總覺得這類型的題目 都是在考驗"邏輯思考" ^_^8 m3 v4 }, y7 n7 i

  [+ ?/ ?  ~: `) E3 l: U偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則