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. B  i! \5 g2 ^; Q' P

6 b1 \/ f& i. Q# H: }' J+ P公仔箱論壇is it b??

roymak82

thanks

iii222

I think is C.
! f  C8 E; |6 H# ~5 N! X% r$ r4 k, u
Since A & B will have no way to know, and D did not know the answer.
  u* q. F! l$ \) v0 I公仔箱論壇: r; s* H' T( N- _5 c' k
This is a tough question for grade 1.  
. V7 b, B' l: V; C* _5.39.217.76
% \' N8 S! o/ }- t公仔箱論壇I most likely cannot answer it within 5 minutes when I was that young.8 v0 A4 y- N4 V, ]0 T$ u6 z
; v7 n7 W- i( |1 a8 i  U& t
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" ^_^9 W; t/ I' \; c! q, X) u

0 k4 K( e" a/ G2 [' q8 n5.39.217.76偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則