Divide the 12 balls into 4 groups of 3's.tvb now,tvbnow,bttvb2 x- v, G* ~' o
Weigh group 1 & 2公仔箱論壇- ?1 [% N* H/ q6 g C
then weigh group 2 & 36 k7 R/ ^8 a8 o
If the results are Equal & Equal, it means the ball with the different weight is in group 4. 6 l+ e' e" s. b( ]tvb now,tvbnow,bttvbIf 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。* |7 ~7 M: J# M: Y+ a Y
If the results are Unequal & Equal, it means the ball is in group 1. / k' n4 k b* r" RIf the results are Unequal & Unequal, it means the ball is in group 2.2 @" U# {6 u# k; ^
) ~7 }3 a* B0 k/ q9 AOnce you determine the group that contains the ball.& y; U6 J$ y. [/ N
Simply weigh two of the balls
發表於 2007-11-15 03:54 PM
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