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 公仔箱論壇9 \5 a4 S5 o  c3 y4 h, k8 K9 c
5.39.217.76" S. x3 W$ i: E" y0 i+ x: z) R1 |
is it b??

roymak82

thanks

iii222

I think is C.
) x4 C$ ]6 l# |2 R& |# e5.39.217.765.39.217.76  E3 O0 _, q/ _& \0 a9 s! L
Since A & B will have no way to know, and D did not know the answer.
) ~( I1 U8 L# A2 s7 o3 w( Z+ Ctvb now,tvbnow,bttvb( l. p5 M. R' D0 V4 i7 k, G3 M7 t
This is a tough question for grade 1.  
2 E" S7 J+ k3 u7 r4 b  b0 x' q3 v9 j0 G1 ztvb now,tvbnow,bttvbtvb now,tvbnow,bttvb- x* {# y! w: }& N$ V) ]# R
I most likely cannot answer it within 5 minutes when I was that young.
- q/ h* S* B. o$ a公仔箱論壇+ @, a. l% f1 ?3 g9 g" X& d
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( S0 H$ J+ ?# ?* W5 s+ V

. l9 k' }0 g. V7 [1 C5.39.217.76偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則