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8 y1 s; u7 Y: s

+ R2 d$ `% Q% e+ B, B5 s+ [is it b??

roymak82

thanks

iii222

I think is C.
0 @  r8 O" [% f: j4 qtvb now,tvbnow,bttvb
! |, |, u. A9 l$ V5 X$ p- _公仔箱論壇Since A & B will have no way to know, and D did not know the answer.
' K) K; Y- W0 f" C' l. q& Stvb now,tvbnow,bttvb
" f2 d/ N* g7 FThis is a tough question for grade 1.  公仔箱論壇2 b/ m, k4 l  e# X
7 S! s) g+ D2 ]+ e2 ^8 _2 {$ k* D
I most likely cannot answer it within 5 minutes when I was that young.
6 U  }. B; |' U' g6 q( h$ C- N$ w- b+ Q, I# L( B) d
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" ^_^公仔箱論壇8 y& j6 q& K1 N2 ~9 h, H

4 M3 _1 V( s, w$ htvb now,tvbnow,bttvb偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則