Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group. , R6 e2 b3 t. z1 I& |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. 5 K* V8 F" [- I; p( ]( H公仔箱論壇