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
/ F$ T+ I2 s: f0 ]公仔箱論壇
0 ]1 Z2 J* g: E) }, cwww1.tvboxnow.comis it b??

roymak82

thanks

iii222

I think is C.
# |2 D, z8 `: E5 y8 l( T; X9 Dwww1.tvboxnow.com
- s; f0 q) x/ j4 etvb now,tvbnow,bttvbSince A & B will have no way to know, and D did not know the answer.tvb now,tvbnow,bttvb( ~, |# ?  U) \9 P0 g

6 l. U  o! s$ _7 U* IThis is a tough question for grade 1.  
& S$ V! X8 e* u* ]5 n; `tvb now,tvbnow,bttvb! S. ~; L7 c- o1 Y) u
I most likely cannot answer it within 5 minutes when I was that young.
8 D1 t+ o. [, j2 n. J7 X8 s9 Bwww1.tvboxnow.com公仔箱論壇. |' U: @! L, p% G$ H2 p. M' [2 ?3 c; I
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" ^_^4 r/ l8 }3 Q, N; d
5 b+ q/ x# t+ k( _
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則