Divide the 12 balls into 4 groups of 3's.
( a8 D n. z0 f' B, a8 s5.39.217.77Weigh group 1 & 2tvb now,tvbnow,bttvb: F* N& r9 A# y: o4 z$ p8 I
then weigh group 2 & 3公仔箱論壇# ?( g1 m" H7 z+ h9 ]
If the results are Equal & Equal, it means the ball with the different weight is in group 4.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。0 o0 S. f3 P4 K& i) I# G% d' D
If the results are Equal & Unequal, it means the ball is in group 3.tvb now,tvbnow,bttvb: j4 Y5 W) d5 V9 {7 ~
If the results are Unequal & Equal, it means the ball is in group 1.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。3 [4 \' H+ P6 F0 J
If the results are Unequal & Unequal, it means the ball is in group 2.tvb now,tvbnow,bttvb# [0 t" S4 F6 B! P0 y
6 s3 k' n& w; F3 KTVBNOW 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。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。2 z) l3 }- C" S ?' d9 q2 N
Simply weigh two of the balls |