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
7 r6 ~" _* ^, \9 Z/ h8 rtvb now,tvbnow,bttvb
, q# v- R, o# z5 i3 D2 D3 \公仔箱論壇is it b??

roymak82

thanks

iii222

I think is C.
1 s6 W. k# s% i) c3 Y* X& Atvb now,tvbnow,bttvb
5 L$ v, s- f) C4 S) Q5.39.217.77:8898Since A & B will have no way to know, and D did not know the answer.5.39.217.77:88983 o$ t' z  h  r1 A
tvb now,tvbnow,bttvb' A- z1 B. a" n
This is a tough question for grade 1.  5.39.217.77:88988 e, }; G4 `0 J2 Z
5.39.217.77:88983 F; X1 g5 o& W
I most likely cannot answer it within 5 minutes when I was that young./ l+ }/ I4 ?% `+ h1 y: ~

, O0 f, c+ D3 d# R3 Etvb 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" ^_^
0 o0 z' N% f. e% Ktvb now,tvbnow,bttvbtvb now,tvbnow,bttvb0 G7 f" g8 V/ X& {5 V. [
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則