Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group.
/ r6 `0 J2 q9 U: [+ ^0 WThe 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.% V6 g% r* z/ D$ x" y! @
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