There is 12 balls.. divide them into piles of 4) ] w& J* g# v& o, z) E4 H0 d# m
so 3 groups for 4..name is A,B,C
! x% F- ?5 J& Y, Z Ktvb now,tvbnow,bttvbcase 1: 公仔箱論壇5 a7 w+ ]( t1 l& M* r) I
measure A -- B
7 x$ n- x6 L0 }' f1 fA or B is heavier ) Q* [7 c2 O( W5 T
divide that group into 2 by 2
( j8 z1 p, i# U1 G6 GTVBNOW 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。then divide heavier group into 1 by 1公仔箱論壇& W5 L' f$ V/ w- W0 O: R" @
8 g5 L/ y: j$ `1 e& ^6 F$ e+ Z公仔箱論壇case 2:
. f2 k) G' ]" r q公仔箱論壇A and B is the same.. therefore C has the heavier ball& \. c$ B0 D0 D( R* I) `
divide C into 2 by 2
* I7 A# \5 D- T& d$ ^5.39.217.76then divide heavier group into 1 by 1..
3 y f2 a/ X' B& p) i# eTVBNOW 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。公仔箱論壇2 {+ W; B5 q. }: l2 l0 P- S5 B: P: V
got it in 30 seconds.. not so hard -.-' |