Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group.
+ W+ M( p# h+ G2 B公仔箱論壇The problem is we don't know the weight of each individual ball, so it will not be accurate to figure out which ball is irregular by only weight them once.
6 P2 F# M( h8 ~公仔箱論壇![](images/smilies/default/018.gif) |