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
% T+ K. R; m, `" w5.39.217.77
% f  v1 l1 p& ^  B8 n3 O( Ois it b??

roymak82

thanks

iii222

I think is C.tvb now,tvbnow,bttvb* u) O( k7 d, |8 E4 W$ Q
* ^* j% y2 e" F% u
Since A & B will have no way to know, and D did not know the answer.
8 m7 b& H4 ~' R- h" N" o
  I) v+ R& x4 A$ c/ |$ D- j9 y公仔箱論壇This is a tough question for grade 1.  tvb now,tvbnow,bttvb: o1 K/ n2 K, }0 F0 ^9 e1 f

, z: F7 M1 |# q- ^0 @' `+ ]公仔箱論壇I most likely cannot answer it within 5 minutes when I was that young.tvb now,tvbnow,bttvb- K8 l: |7 q" t6 |9 ~- g" r$ _

* n/ S, K: T8 V, w: p& G# ~( M公仔箱論壇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" ^_^
' o3 J) z. P1 e! mtvb now,tvbnow,bttvb
. }# J" c! |  M/ X1 R: U3 T4 Ttvb now,tvbnow,bttvb偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則