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
! C+ L" o# C& E6 y1 ~7 p7 |$ \5.39.217.77:8898tvb now,tvbnow,bttvb5 N* O' K4 O( W0 d2 n$ {
is it b??

roymak82

thanks

iii222

I think is C.5.39.217.77:88986 i' ^6 M$ U: s; @

; G, m% C8 ?0 Htvb now,tvbnow,bttvbSince A & B will have no way to know, and D did not know the answer.
! S2 ~9 R' w8 F( ^) C: o( U8 _+ W) L2 M; a
This is a tough question for grade 1.  
( r4 I, b  M3 h. xTVBNOW 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。# k8 Y1 ]% n* v0 J6 M6 s
I most likely cannot answer it within 5 minutes when I was that young.
! M( E  |5 ?8 d6 x3 A; M* o& Y公仔箱論壇/ L+ F6 U4 w' Q& 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" ^_^5.39.217.77:8898( R- `: Y4 A& ?
4 d0 |7 _8 y( m2 W2 @* z: W
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則