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
; P2 S" P+ a- X2 z" x5.39.217.77:8898tvb now,tvbnow,bttvb0 Z+ w3 B$ R- |5 z
is it b??

roymak82

thanks

iii222

I think is C.
/ }3 L9 m1 m2 H/ O$ \$ l' T2 j0 t7 Y( l' w1 ?
Since A & B will have no way to know, and D did not know the answer./ b( w8 n. e. W0 K) }- C+ \$ w
+ k( G* J! `" H+ d. F) i6 s
This is a tough question for grade 1.  
: P) Y% R( n4 a! P" a
/ E6 @7 ?  E* Q: H8 H/ B0 m0 B  ^I most likely cannot answer it within 5 minutes when I was that young.  B, h6 O. L2 C' M8 }

, Q# `7 r& X' {% h- eWow, 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" ^_^
0 H) f) J* X4 i4 q) Y
9 t4 a0 z9 b9 M3 d. B  {5 _公仔箱論壇偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則