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 t  L- h2 @3 K! X3 n
5.39.217.77:8898& n6 o- F4 L( D5 n
is it b??

roymak82

thanks

iii222

I think is C.
! A/ v2 n$ z: q0 y' r4 z
; b' w' y- r0 @6 ^* GSince A & B will have no way to know, and D did not know the answer.
( g# b8 y3 ?) a/ qtvb now,tvbnow,bttvb
% ?6 }( Q  {3 G/ D1 I! P+ P. Y  \7 H5.39.217.77:8898This is a tough question for grade 1.  * S( I# ?2 S' u9 w& G

6 h: i" _, f# E6 O+ I' p& o# t公仔箱論壇I most likely cannot answer it within 5 minutes when I was that young.7 v& p0 p! _  O$ ^) T

' c% o8 E5 i( ^" V3 @2 qtvb now,tvbnow,bttvbWow, 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" ^_^
* Z7 l" I( |% E  ~, s, m% T公仔箱論壇+ y$ ^9 O0 I6 c" ^3 D; V" }9 y
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則