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 - A" m; g/ i8 a) j/ g' ?7 T, E# b8 V

! r+ W. P4 _9 ~tvb now,tvbnow,bttvbis it b??

roymak82

thanks

iii222

I think is C.
+ E4 H# }% D4 i5 C* J  @3 y' j5.39.217.77:8898" M/ b- L1 K- Y: h) H
Since A & B will have no way to know, and D did not know the answer.5.39.217.77:88988 r  {) D/ M6 l; M

% P/ J# h2 X: U. f. t" q& d7 I5.39.217.77:8898This is a tough question for grade 1.  
" M  G% d) j6 H, H; z公仔箱論壇8 A- V$ j% l# H  [! |3 I, {9 F
I most likely cannot answer it within 5 minutes when I was that young.% v& t- K+ B$ l5 f9 F

+ S. X: b$ S  I7 r9 P' s) D' kWow, 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" ^_^
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偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則