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
2 {+ ]1 K& j7 C2 A  B9 G公仔箱論壇tvb now,tvbnow,bttvb: P" n9 y4 a" z" l# D) W
is it b??

roymak82

thanks

iii222

I think is C.
0 Z0 l6 w% ?5 D
6 \# g$ L- y& E/ C1 P+ Q$ p+ v- iSince A & B will have no way to know, and D did not know the answer.5 P- B# s9 D4 k& x' l& f0 G
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。  C# H  q; H# \2 e' A
This is a tough question for grade 1.  tvb now,tvbnow,bttvb  d3 r/ A3 C) N$ ~, l4 T. V1 r1 _

. X! Q/ i0 H8 `5 MI most likely cannot answer it within 5 minutes when I was that young.7 q% d6 I4 F$ t: n+ x& S
2 _- u5 m2 W1 r( i) {6 s- k
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" ^_^/ d! u! |; m7 `5 k7 z1 B" z7 l8 |. i
tvb now,tvbnow,bttvb7 v+ {$ T  Q: S
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則