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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* e" c. q3 H6 }6 A5 bis it b??

roymak82

thanks

iii222

I think is C.
. U0 i4 x& e6 i% u/ O: V. s5.39.217.77:88989 r$ i: ~& w0 V  c: P
Since A & B will have no way to know, and D did not know the answer.
; ~0 P2 _, P: `* m( xtvb now,tvbnow,bttvb公仔箱論壇" Z% m2 v% H* ^5 ?1 @* e
This is a tough question for grade 1.  
/ S8 R4 b$ J! q+ hTVBNOW 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。tvb now,tvbnow,bttvb  j% K, w# G5 t, ?: J
I most likely cannot answer it within 5 minutes when I was that young.
! z: G) N& o5 S. C2 J公仔箱論壇& @7 n8 \0 c4 \/ d$ G* w4 `7 f# B& D
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