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.tvb now,tvbnow,bttvb& M; E$ ?0 p, m) ~7 a4 B  ~( N
. B6 {6 [6 q: g) C, `
Since A & B will have no way to know, and D did not know the answer.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。/ i. U/ P& ~- F5 q0 d

! }% c2 F' s. x, I% F2 D* D" gtvb now,tvbnow,bttvbThis is a tough question for grade 1.  
4 c( `  L3 }) h  C' a/ H4 ?0 Ztvb now,tvbnow,bttvb
5 ?/ ^  D9 i9 u  ?/ |I most likely cannot answer it within 5 minutes when I was that young.
) x' U8 y+ g. F# n7 m. j) ?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。" x9 j2 |7 T  Y. `0 w7 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" ^_^
. ~: R" m% V$ h4 x公仔箱論壇
# ~; D- i' W0 J0 J偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則