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 5.39.217.77:88986 a1 S( Q) ^2 P& L5 s4 y+ {* Q6 b
5.39.217.77:8898; G! |9 {2 P9 C. I' H8 G/ p  L+ u, d
is it b??

roymak82

thanks

iii222

I think is C.5.39.217.77:8898* `& j# g0 a( p4 @! L
tvb now,tvbnow,bttvb% b9 ~+ r$ ?! J, d" F3 _8 H8 \
Since A & B will have no way to know, and D did not know the answer.5.39.217.77:88980 y* M# Y; d. Q, `7 L& M
# z, n  \( u# f* V1 U$ J3 o
This is a tough question for grade 1.  
  `4 l; E* r8 w# q( g公仔箱論壇
7 M, E9 D: M+ f( B( f- Qtvb now,tvbnow,bttvbI most likely cannot answer it within 5 minutes when I was that young.
3 ?! u$ V5 W8 F* r0 q0 n5.39.217.77:8898
4 w! U- `) ?: J  Z8 x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" ^_^
' K" |8 A) k. i) Y" x
- M3 P# R$ _! e2 G; |: E* M偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則