Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group.
b3 n& z6 m4 k+ S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.
- D6 j0 ~+ m: Z% ~tvb now,tvbnow,bttvb |