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.
& o/ z; d3 v4 n# D# JTVBNOW 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。公仔箱論壇. ^# b/ X" x* |8 }3 h9 {; N6 o
Since A & B will have no way to know, and D did not know the answer.tvb now,tvbnow,bttvb% }( I; }* P  g4 @3 b4 {) R6 b
$ H% K, f; n0 U9 S" t. s& t# f
This is a tough question for grade 1.  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。/ y% S! C# j! _0 U$ ^( _

% J* P& H4 k) \' Otvb now,tvbnow,bttvbI most likely cannot answer it within 5 minutes when I was that young.公仔箱論壇" u( D6 u8 U  H9 C5 [
tvb now,tvbnow,bttvb6 E* n# O( M& `! s" ?7 v
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" ^_^公仔箱論壇2 Q0 w/ p+ q2 o% V( f4 j+ N: L

: A9 L1 u( [  f$ B4 r6 t8 \' A偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則