Divide the 12 balls into 4 groups of 3's.www3.tvboxnow.com, v+ E& j4 m$ k
Weigh group 1 & 2tvb now,tvbnow,bttvb& m4 ?5 |: A& a
then weigh group 2 & 3www3.tvboxnow.com+ _9 j! I; C0 m) f+ i# U0 P) m
If the results are Equal & Equal, it means the ball with the different weight is in group 4.: M! A8 c: X4 l
If the results are Equal & Unequal, it means the ball is in group 3.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。+ f, u; N# h' ?5 w$ T
If the results are Unequal & Equal, it means the ball is in group 1.' B, t# g0 ^/ \ `4 F% t
If the results are Unequal & Unequal, it means the ball is in group 2.www3.tvboxnow.com1 f; s8 K/ I& Q. l% X9 f
2 T9 `1 d! e3 ?9 R8 kOnce you determine the group that contains the ball. 8 N1 ]0 L1 W" ?9 p1 Y, g3 i" |# _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。Simply weigh two of the balls