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8 |. X' D7 w8 M5 s( Q# R4 Y1 |
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.
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