Divide 3 groups first.6 o0 j' F2 m: b1 ~& v, S. J N4 d
i.e. 4 x 4 x 4." |! p" q4 ~9 _5 e, S8 G
Weight any 2 groups [1st]公仔箱論壇) x" }0 t A9 u; V2 [5 C3 C
then you will know the heavier ball in which group.tvb now,tvbnow,bttvb: o6 a: ?4 s$ L6 Y
Weight any 2 balls in that group [2nd]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。" _7 ?: L, C; q/ |5 t
then you will know the heavier ball in which 2 balls.8 r- E6 X7 }$ l
Repeat again in remainders [3rd]
6 I4 f5 o* N+ y公仔箱論壇Got the heavier ball. |