Well..divided into 6/6 first to define a heavier group is certainly right. Randomly select 3/3 will result another heavier group.公仔箱論壇' j+ z4 ~! D0 I" S1 Y, |
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.5.39.217.76- A" n# c9 N7 W8 `/ @+ Q. [$ D
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