Divide the 12 balls into 4 groups of 3's.
+ J; @$ `) {! T公仔箱論壇Weigh group 1 & 2tvb now,tvbnow,bttvb% D( J! h5 |( @+ y, w# O8 ^1 U
then weigh group 2 & 3
( }4 o y% \ L gIf the results are Equal & Equal, it means the ball with the different weight is in group 4.) T1 c8 ?5 F& _* o
If the results are Equal & Unequal, it means the ball is in group 3.
: [% ~2 J/ j- s7 WTVBNOW 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.
8 L/ L, F! q( w6 j$ r C6 gIf the results are Unequal & Unequal, it means the ball is in group 2.
6 r2 P1 _! B. p' F+ D+ g" a/ h$ o公仔箱論壇5.39.217.77:8898/ e; X/ n( r; l+ r ^
Once you determine the group that contains the ball.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 Z0 X( h T& e+ O
Simply weigh two of the balls |