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
% }8 `0 h4 ^& X5 [0 X2 R公仔箱論壇, z0 t9 t+ z4 R2 f, ?! J3 H- D! g
is it b??

roymak82

thanks

iii222

I think is C.
  A2 q: O  v: ^" L- c, g4 m5.39.217.77:88980 b2 X- t6 Y6 ?& V8 O$ N; T, n
Since A & B will have no way to know, and D did not know the answer.# `% m% W- v) U! F$ A5 c
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This is a tough question for grade 1.  5 y# t) A# g  }4 Q: p

" x# c, Q8 n$ G. U; a0 Z- itvb now,tvbnow,bttvbI most likely cannot answer it within 5 minutes when I was that young.5.39.217.77:8898) `* H7 V4 |# w( i! Q3 w
5.39.217.77:8898% e/ E4 M' [  H7 P- Y
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" ^_^
9 E' m, ?- a; p. X; g( O4 f
6 V8 W2 s7 }' G5 k8 k偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則