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 H7 _$ r1 }0 V) R公仔箱論壇
" p) e) {' |+ A6 D* eis it b??

roymak82

thanks

iii222

I think is C.5.39.217.77:88984 d" k5 B+ p# M/ q3 D
4 U+ |' x2 b+ d& _/ L6 l
Since A & B will have no way to know, and D did not know the answer.1 J# v# C9 L  l

; k4 r5 ]9 ~: ^0 H0 ~tvb now,tvbnow,bttvbThis is a tough question for grade 1.  
8 X8 C- D; s& g. @9 J, p5 m" \公仔箱論壇
% t" I' x0 e) X' r* O& I) ^5.39.217.77:8898I most likely cannot answer it within 5 minutes when I was that young.tvb now,tvbnow,bttvb1 ]/ n- M8 n! c. p( @5 p

, ^, y6 D: c8 y8 o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" ^_^5.39.217.77:8898! u: O1 Y2 u5 _4 s
tvb now,tvbnow,bttvb4 o, ]' ^$ {6 X7 k
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則