Divide 3 groups first.tvb now,tvbnow,bttvb6 ?0 b" V# x, c
i.e. 4 x 4 x 4.; |3 t- r# l4 U$ H: i
Weight any 2 groups [1st]
- T7 C) g$ C: G3 r/ H6 y' r9 n; zthen you will know the heavier ball in which group.www.tvboxnow.com3 D6 e6 t; `; R/ ^ _1 L5 f8 ~! _: q
Weight any 2 balls in that group [2nd]
" k$ A& f9 ?% b% X8 q/ B1 l( btvb now,tvbnow,bttvbthen you will know the heavier ball in which 2 balls.公仔箱論壇/ |" |3 E/ q/ b# ?
Repeat again in remainders [3rd]www.tvboxnow.com6 z3 w# j9 M F; w
Got the heavier ball. |