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
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is it b??

roymak82

thanks

iii222

I think is C.
6 B# z( S! ~" n3 Dtvb now,tvbnow,bttvb公仔箱論壇. {' w9 B0 E! b7 `
Since A & B will have no way to know, and D did not know the answer.
3 f2 w  ^. K' ]- v' }TVBNOW 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。4 J! _+ N0 p( i# q* G- |6 {
This is a tough question for grade 1.  
9 B" S: u1 n3 ?公仔箱論壇公仔箱論壇& V4 j# A- N& `4 {6 J) Q7 e! ^
I most likely cannot answer it within 5 minutes when I was that young.. V; R) P# B( f! F/ O
tvb now,tvbnow,bttvb7 q# P: a; q& H# U9 r
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" ^_^
" S2 h, P+ W# u8 V9 h; _TVBNOW 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。
( p& a, k/ N( ~8 c/ m偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則