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 公仔箱論壇- [% u- Z! F( l: S, D+ {4 c
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is it b??

roymak82

thanks

iii222

I think is C.
0 j6 _+ [- J" f2 ~- y5.39.217.76
" v  R* `2 J% B  r. F- SSince A & B will have no way to know, and D did not know the answer.
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# p( f. r7 Z3 l. D% mThis is a tough question for grade 1.  5 a6 f% \, r9 p# g9 p

! g1 ]& M- B" [% dTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。I most likely cannot answer it within 5 minutes when I was that young.5.39.217.76- O* R8 C% p! w: _! ^

1 X+ ?1 H  Q4 x4 \* {5.39.217.76Wow, 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" ^_^
- b: E  r! u- g- U& d7 }' O
2 E% r' ?% Z- _5.39.217.76偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則