Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group. 3 r$ w* u3 h8 b& I3 }/ T9 SThe 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. 9 g; T! d) H2 aos.tvboxnow.com