Divide the 12 balls into 4 groups of 3's.tvb now,tvbnow,bttvb: i* N# J+ M& U3 g
Weigh group 1 & 2 3 j6 H! R9 t; hthen weigh group 2 & 37 V9 c! L: T4 F( i, b2 J( @
If the results are Equal & Equal, it means the ball with the different weight is in group 4. : u8 X( ~& }3 Z$ K8 [% dTVBNOW 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 & Unequal, it means the ball is in group 3. % O; x( M j0 ^" w* hTVBNOW 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. - m9 v7 [3 C- ?( _' ` nIf the results are Unequal & Unequal, it means the ball is in group 2. : F; z) t% z+ Q+ t5.39.217.77公仔箱論壇+ K! @! k( n6 V3 z. w
Once you determine the group that contains the ball." e: v/ Z: y; `! R: U
Simply weigh two of the balls