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.
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Since A & B will have no way to know, and D did not know the answer.
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This is a tough question for grade 1.  
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* s  H/ [- G5 Q* X; h+ ZI most likely cannot answer it within 5 minutes when I was that young.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。' T- U! S( C) ~. W7 n

# R$ g2 w& J/ D$ d* U) n9 H6 W# DWow, 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" ^_^
2 c, }- O0 r6 H) O/ X& j公仔箱論壇: ?8 \& A( k9 {) A, g4 \) z
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則