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 : ]" ~- H( G( S% [

$ C6 o8 ]' N1 STVBNOW 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。is it b??

roymak82

thanks

iii222

I think is C.公仔箱論壇) }! s6 |6 C1 T/ o2 l

2 @( r. @9 [" aSince A & B will have no way to know, and D did not know the answer.tvb now,tvbnow,bttvb: t2 V: n( r9 N% i
% g, {$ E0 E+ N# }( s: m; Q
This is a tough question for grade 1.  ! g. Z- m, N! \. t1 D) r* _
公仔箱論壇" E) {5 a0 O& i! p
I most likely cannot answer it within 5 minutes when I was that young.
: c( M; D0 g: U5 r; }6 ~" @9 a# |
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" ^_^) y% `+ W3 q7 |

' `' o( F! m6 r: a7 y偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則