Divide the 12 balls into 4 groups of 3's. * ?3 _3 Q% |) w1 `$ ttvb now,tvbnow,bttvbWeigh group 1 & 2: v( ]1 {/ v9 m' K" M+ n- K
then weigh group 2 & 32 w2 B4 v4 H% P6 o6 A! ^
If the results are Equal & Equal, it means the ball with the different weight is in group 4., |" `* n2 B' N% l/ L& n; y
If the results are Equal & Unequal, it means the ball is in group 3.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。" i3 f7 A) ]% f8 _- R/ }2 c, x
If the results are Unequal & Equal, it means the ball is in group 1. 7 D; q( b! W% _! R$ j3 Y0 {If the results are Unequal & Unequal, it means the ball is in group 2.公仔箱論壇% K2 M$ i6 i9 k# ^; E% T
tvb now,tvbnow,bttvb! J& P& y% X0 P- X8 E- S
Once you determine the group that contains the ball. ' T/ ?$ }/ ~# I0 t: A4 Z3 }Simply weigh two of the balls
發表於 2007-11-15 03:54 PM
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