Divide 3 groups first.6 Q5 Y0 b3 |7 c. D% e
i.e. 4 x 4 x 4.
4 r) ?5 D1 q& q公仔箱論壇Weight any 2 groups [1st]tvb now,tvbnow,bttvb2 F0 J. A% T) @7 s! Z7 q
then you will know the heavier ball in which group.
4 l6 \- Y- v+ ~' b5.39.217.76Weight any 2 balls in that group [2nd]3 I8 A* @% l% g# R
then you will know the heavier ball in which 2 balls.
1 k! K% e4 R. `7 f6 N- c公仔箱論壇Repeat again in remainders [3rd]公仔箱論壇( K4 w3 T, v3 h- p% R5 @
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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