Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group.5.39.217.77:8898( s3 T2 N! l0 q" [4 l- @- p+ @
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. + i- s: D0 W& v, M: z- E# Otvb now,tvbnow,bttvb