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 TVBNOW 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。4 e% G& ~4 ^+ |* ]+ f7 T, \% m# N
公仔箱論壇$ ~1 Q0 Y; T( A" v8 Q# Y
is it b??

roymak82

thanks

iii222

I think is C.
% p' K8 R+ o+ y- |$ utvb now,tvbnow,bttvb5.39.217.77:88986 \5 O0 m; W1 r$ [
Since A & B will have no way to know, and D did not know the answer., M2 l0 a$ ~& y8 T) g
tvb now,tvbnow,bttvb8 T/ C- p' U! ~$ u
This is a tough question for grade 1.  ) g( R  P% m2 h* ~. O

7 m  N4 N4 z& otvb now,tvbnow,bttvbI most likely cannot answer it within 5 minutes when I was that young.
# v5 D8 m# \+ I4 C" U; q3 T1 `$ }: d* z) V5 x$ R% p
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" ^_^
) n4 p7 h% H* k5.39.217.77:88985.39.217.77:88987 }' M: V  W& L# C. o& ^- y# Y9 l
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則