Divide the 12 balls into 4 groups of 3's.www3.tvboxnow.com6 t1 S5 u7 B* Y; T
Weigh group 1 & 2 & N6 d0 K1 h1 }tvb now,tvbnow,bttvbthen weigh group 2 & 3 6 } `: m9 V: B- [* K9 B# I' ^公仔箱論壇If the results are Equal & Equal, it means the ball with the different weight is in group 4. ) [. ]7 U2 S7 ]* b8 ]If the results are Equal & Unequal, it means the ball is in group 3. ; z, A5 _9 X1 B2 [- b% VTVBNOW 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。If the results are Unequal & Equal, it means the ball is in group 1. 0 b3 m$ _6 e+ G2 o公仔箱論壇If the results are Unequal & Unequal, it means the ball is in group 2. 9 m/ c% z0 M( R9 d) y. M公仔箱論壇 3 t. v' K- S7 A5 q# T8 Y# `Once you determine the group that contains the ball. 2 b0 x' t# g& Y9 T. ISimply weigh two of the balls