Divide the 12 balls into 4 groups of 3's.tvb now,tvbnow,bttvb/ S# K1 G' v" Q" ]" {1 h4 y( ~
Weigh group 1 & 2 4 z5 @% P/ N5 t2 K1 j6 \& ]! Hthen weigh group 2 & 30 j m' Y$ M3 z; y& c4 I) @0 G
If the results are Equal & Equal, it means the ball with the different weight is in group 4. " ^/ P. D& h8 K7 ` ^8 y# utvb now,tvbnow,bttvbIf the results are Equal & Unequal, it means the ball is in group 3. 2 K e+ W8 ^7 |tvboxnow.comIf the results are Unequal & Equal, it means the ball is in group 1. V( T5 G! B$ D( C( }& L( j1 }If the results are Unequal & Unequal, it means the ball is in group 2.; B! b3 |* C9 e4 f0 s8 q
tvb now,tvbnow,bttvb# J; s3 e( i+ p
Once you determine the group that contains the ball.tvboxnow.com+ i/ Y9 K$ b3 U: K1 @* D8 s1 U
Simply weigh two of the balls