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
) K) _  X4 F: ?3 |
$ u; o) t; _/ W7 Lis it b??

roymak82

thanks

iii222

I think is C.
2 Z+ b; Z8 o# w公仔箱論壇tvb now,tvbnow,bttvb& R. C$ y2 H+ k1 W( R  w! S8 }
Since A & B will have no way to know, and D did not know the answer.
1 P3 G3 U2 h- u6 Q8 F
$ V9 ]' `6 Q8 }0 g+ F9 ~www1.tvboxnow.comThis is a tough question for grade 1.  
. ]/ s+ c( ~% ]5 K" g. Z公仔箱論壇7 J8 |2 Q8 B6 L( |: z
I most likely cannot answer it within 5 minutes when I was that young.
8 F. }: S9 ]% J. K公仔箱論壇6 w1 _7 w4 J) x: Y" Q7 S
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" ^_^tvb now,tvbnow,bttvb6 Y* @& r1 [* S7 j: f
; Y7 t' Z' a9 i& V4 U! o' \
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則