Divide the 12 balls into 4 groups of 3's.2 C4 b E- h' Z$ K2 n
Weigh group 1 & 2
. e; W5 W# k: c+ Ythen weigh group 2 & 3tvb now,tvbnow,bttvb1 K: }2 w) Z) h
If the results are Equal & Equal, it means the ball with the different weight is in group 4.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。" R* [0 `0 s6 ?6 m% t8 T
If the results are Equal & Unequal, it means the ball is in group 3.www2.tvboxnow.com+ T: l2 t* o1 d! x; B4 Q
If the results are Unequal & Equal, it means the ball is in group 1.tvb now,tvbnow,bttvb3 R$ `( x) T4 C Q
If the results are Unequal & Unequal, it means the ball is in group 2.tvb now,tvbnow,bttvb4 L' H( t4 z+ k. w- }
tvb now,tvbnow,bttvb+ {+ X7 P) B9 z3 N1 {% M
Once you determine the group that contains the ball.
, V- }, @( }1 x, wSimply weigh two of the balls |