Divide the 12 balls into 4 groups of 3's.3 O3 a( R4 g& r% Z) W; h3 ]
Weigh group 1 & 25.39.217.77:8898) |! v1 _9 I8 O6 a, I& U6 N, i, m0 Q
then weigh group 2 & 35.39.217.77:88980 {0 M" V& v% S
If the results are Equal & Equal, it means the ball with the different weight is in group 4.- d S, a+ D/ a. y! {. a
If the results are Equal & Unequal, it means the ball is in group 3.
+ }. I/ v6 j/ Z r) a4 m0 _If the results are Unequal & Equal, it means the ball is in group 1.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。% L6 x; P( _9 s! Z) s! W
If the results are Unequal & Unequal, it means the ball is in group 2.公仔箱論壇! S' \2 y, }+ ]2 H5 k! M
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Once you determine the group that contains the ball., S" X0 j2 I+ w7 _ ^
Simply weigh two of the balls |