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 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。% ^, f! c0 v; A, k+ D8 H
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is it b??

roymak82

thanks

iii222

I think is C.
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( |' E6 v% V" s( O  o, G) o. M# h3 H5.39.217.77:8898Since A & B will have no way to know, and D did not know the answer.
) G! q: }; g% N/ e" d5.39.217.77:8898
5 v3 O7 g$ G6 K) p' W- HThis is a tough question for grade 1.  5.39.217.77:8898* G3 N- u  l9 W5 e
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I most likely cannot answer it within 5 minutes when I was that young.( C1 I' z& u' v3 J, E& R0 o

- d. n: a8 j/ C, L5 k! PTVBNOW 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。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" ^_^
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偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則