Divide 3 groups first.tvb now,tvbnow,bttvb- q7 _3 p f& R# X: D% ^/ e
i.e. 4 x 4 x 4.公仔箱論壇7 x, q+ e' ?/ |0 p3 e1 S& M
Weight any 2 groups [1st]公仔箱論壇$ x8 s7 B4 }: f. w
then you will know the heavier ball in which group.
6 [! z/ ?0 w" ?% c L3 U2 f. X, l公仔箱論壇Weight any 2 balls in that group [2nd]
3 y2 S8 @( E R" |/ G/ H. P5 k5.39.217.77:8898then you will know the heavier ball in which 2 balls.
2 s) w6 l2 S% O: { t, @公仔箱論壇Repeat again in remainders [3rd]
9 v' n* O2 z( _ i! t; [公仔箱論壇Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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