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, M& n/ X3 @/ N) J0 S
! Y  O9 ]1 V; U& q
is it b??

roymak82

thanks

iii222

I think is C.tvb now,tvbnow,bttvb9 ]; K, V4 S- x; o6 ~: y$ S

! W% x8 |5 K( y+ o% \2 dSince A & B will have no way to know, and D did not know the answer.
0 y5 \9 V5 H5 d9 z; R5 d9 d0 r" Q: z5 ]
This is a tough question for grade 1.  . c1 ^4 Y& Z/ w5 @

7 t" N' r5 }' L# i3 U/ i+ zI most likely cannot answer it within 5 minutes when I was that young.
2 J, ]/ P( i2 |" n7 y& t公仔箱論壇
, l" t3 {/ X( M- R3 ?5.39.217.77:8898Wow, 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" ^_^
! `6 G5 _3 D( K0 F! @
) }% N  d* c$ f6 h' f4 `偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則