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
3 e/ j) R9 t% Q& Ktvb now,tvbnow,bttvbtvb now,tvbnow,bttvb, f9 g0 p6 Z" ^( c, n% `* x9 H' j4 T
is it b??

roymak82

thanks

iii222

I think is C.5.39.217.77:8898% |1 o9 O* O9 R1 F' K: S

! T$ C% \  R0 j1 ?6 R- {) W/ rtvb now,tvbnow,bttvbSince A & B will have no way to know, and D did not know the answer.
3 @& G8 ]2 e/ M1 c& j! H$ I公仔箱論壇tvb now,tvbnow,bttvb" B, J$ i& l0 o  R" o% ?+ k
This is a tough question for grade 1.  
3 `2 ~8 r9 B  y. |, O公仔箱論壇
8 u3 P3 a* m( |I most likely cannot answer it within 5 minutes when I was that young./ @: g! p: ~4 H. E: w3 L  K
tvb now,tvbnow,bttvb1 s1 {' @3 T( m. A- |, M( J" r) V
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" ^_^5.39.217.77:88989 Y( p& h8 J2 j' |6 p0 w) ?( I

, D; O; i5 |% a$ Q. Ktvb now,tvbnow,bttvb偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則