Divide the 12 balls into 4 groups of 3's.0 N- j! U' _5 u& Z4 l4 b
Weigh group 1 & 25.39.217.762 B' `/ G& _3 N6 I4 Y& u( `
then weigh group 2 & 35.39.217.76+ y( V9 m3 N# H
If the results are Equal & Equal, it means the ball with the different weight is in group 4. 4 j* s L5 s/ t2 G0 s$ o C/ CTVBNOW 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.公仔箱論壇9 O6 h" f: _ v/ x4 v/ {
If the results are Unequal & Equal, it means the ball is in group 1. # d* P( t( f3 R' k5 m5.39.217.76If the results are Unequal & Unequal, it means the ball is in group 2. ! T% a4 t1 Q& n( }) G* u1 ^公仔箱論壇 z/ O2 a& R3 ^: Y: x公仔箱論壇Once you determine the group that contains the ball.3 L% I( U! z: e. i* u2 d( v# g( `+ ^
Simply weigh two of the balls