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 tvb now,tvbnow,bttvb6 ~0 v; A% v. O# t7 @. F* ]/ U( X8 v% }
TVBNOW 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。) @( y" T  G. [
is it b??

roymak82

thanks

iii222

I think is C.
( A+ y, f6 k7 W3 P7 b/ m公仔箱論壇5.39.217.77:8898# H" M! ?; S/ g
Since A & B will have no way to know, and D did not know the answer.
* e9 ^$ C* o9 oTVBNOW 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。
9 o* o' J' t3 _: x5 r* k- B! G& etvb now,tvbnow,bttvbThis is a tough question for grade 1.  
- X5 H' z8 y5 W0 i, p公仔箱論壇/ ]' m. u4 U4 }) i; w7 ^/ V7 D
I most likely cannot answer it within 5 minutes when I was that young.公仔箱論壇: r% d( [3 ^8 [" H" b& Y  G

6 `) J5 x" N2 D9 k" R0 _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" ^_^
1 T0 a1 F) e, l8 n4 ]: w- }# o! J6 D' s: G" ?
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則