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 tvb now,tvbnow,bttvb5 R, @/ _: Q! t. z" S
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is it b??

roymak82

thanks

iii222

I think is C.
" N% J' V: y' P. |7 r7 Z! f6 o/ `tvb now,tvbnow,bttvb
6 a: x" s" u3 C3 pSince 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。2 e  ^; x2 r, Q, v3 z& }2 j
公仔箱論壇1 Y! S- Z' i7 _4 o8 N
This is a tough question for grade 1.  tvb now,tvbnow,bttvb7 l3 e. P0 H9 Z& N! |$ B
8 u. v; C  Z) }2 g
I most likely cannot answer it within 5 minutes when I was that young.os.tvboxnow.com5 B% l* k) `! a4 `% O5 F( {0 Y

+ W  D" l% \0 n! ]8 y& P2 B0 v公仔箱論壇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" ^_^
7 W, R' o" _& W/ f公仔箱論壇os.tvboxnow.com8 z8 _& |8 i7 L+ s+ Q
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則