Divide the 12 balls into 4 groups of 3's.tvb now,tvbnow,bttvb/ b! ?& ^/ q; ]: x6 O. x
Weigh group 1 & 2 ; U2 w% V" n# w/ t3 \ O3 C: G1 hthen weigh group 2 & 3 2 d7 u8 b8 N' _4 b$ ^5.39.217.76If the results are Equal & Equal, it means the ball with the different weight is in group 4.公仔箱論壇7 \7 e- A2 L. j; V" l( H
If the results are Equal & Unequal, it means the ball is in group 3. ' F0 r) @0 m( d( X* \( g1 ETVBNOW 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.tvb now,tvbnow,bttvb' e2 I5 f" E( b
If the results are Unequal & Unequal, it means the ball is in group 2.2 Z2 A G2 p: X4 f% U2 M/ s& Y- C- i4 Q
" _6 q% A$ w1 k% b; Z5 @5.39.217.76Once you determine the group that contains the ball.公仔箱論壇1 W2 ~# z! `5 d' H- U
Simply weigh two of the balls