Divide the 12 balls into 4 groups of 3's. / ]1 X( s: F4 @$ MWeigh group 1 & 2 6 b; b+ _. y! P$ W3 e Bthen weigh group 2 & 3 / k6 i9 ~3 w$ v5 `' R: q& BTVBNOW 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 Equal & Equal, it means the ball with the different weight is in group 4. + M* M( V8 P0 F# m8 _+ T5.39.217.77:8898If the results are Equal & Unequal, it means the ball is in group 3. & c. V5 f5 K8 f' u" ] VIf the results are Unequal & Equal, it means the ball is in group 1.+ L4 @( R9 S/ e
If the results are Unequal & Unequal, it means the ball is in group 2. ' N0 d2 O1 u& X% h' b! i; v; f, d, r c# S* r ~$ F* Y
Once you determine the group that contains the ball.2 X- ?7 H4 _( z& k
Simply weigh two of the balls