Divide 3 groups first.
! h, q$ f Q# g2 _) d2 N, y4 yi.e. 4 x 4 x 4.www2.tvboxnow.com; b! Y5 E! X V6 g
Weight any 2 groups [1st]
0 k8 m, R7 H& J& D6 Ltvb now,tvbnow,bttvbthen you will know the heavier ball in which group.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。! l: P' X/ o* W7 [
Weight any 2 balls in that group [2nd]
8 I# a- W! U; P+ Sthen you will know the heavier ball in which 2 balls.www2.tvboxnow.com$ o3 H; ^. U& ^8 k2 G
Repeat again in remainders [3rd]tvb now,tvbnow,bttvb4 F& W: K+ t1 @7 s7 P2 W
Got the heavier ball. |