Divide the 12 balls into 4 groups of 3's. . `: M9 W. r$ z" ?* ~/ l5 u+ JWeigh group 1 & 2 9 {) c# @; r" z3 {2 Y) p* wTVBNOW 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。then weigh group 2 & 3 4 p" R; G' ?# Z" fIf the results are Equal & Equal, it means the ball with the different weight is in group 4. * I: N: A, U- }5 L: V: k- Utvb now,tvbnow,bttvbIf the results are Equal & Unequal, it means the ball is in group 3.$ K; Y+ h2 \+ c, r
If the results are Unequal & Equal, it means the ball is in group 1. 4 G* n5 M" u5 T/ nIf the results are Unequal & Unequal, it means the ball is in group 2.5.39.217.77:8898' D4 @& u/ a( i% f+ @ M
6 C; q, U/ ~8 q$ a# o- W: R9 @5.39.217.77:8898Once you determine the group that contains the ball.4 S( l; ?7 |6 Z+ i) \1 g6 M
Simply weigh two of the balls