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
! c* i0 G/ J8 \4 O8 H, etvb now,tvbnow,bttvb- G+ j4 x# A4 F4 C9 {! W7 ~, ^
is it b??

roymak82

thanks

iii222

I think is C.
# f( A; @/ `1 Wtvb now,tvbnow,bttvb8 x9 g8 _4 J& O8 O1 ~" S3 y
Since A & B will have no way to know, and D did not know the answer.
0 A" j/ n' b. q% `1 x7 R+ S! ~& u5 X2 x% N! n0 D
This is a tough question for grade 1.  
: {! W" r0 i9 V. D
1 G# w# q6 z2 U: t3 ktvb now,tvbnow,bttvbI most likely cannot answer it within 5 minutes when I was that young.tvb now,tvbnow,bttvb- L. t) M9 e0 w" F$ S+ b

9 |( D1 Z$ ?2 Z1 B) RWow, 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" ^_^
/ R9 ~7 I$ j; Z, S4 Ktvb now,tvbnow,bttvb
& W. N- Y1 a4 [5.39.217.77偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則