Divide the 12 balls into 4 groups of 3's. 1 ^# A S! R$ K# _Weigh group 1 & 25.39.217.77, M7 r& `: K: ~' x7 y5 j: B- O4 z) m/ u
then weigh group 2 & 3tvb now,tvbnow,bttvb4 R0 e; ^: j. l/ p1 P0 R p
If the results are Equal & Equal, it means the ball with the different weight is in group 4. 4 Z) |4 h* s8 Y. ^/ vTVBNOW 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. 7 _5 ^7 i; m# g公仔箱論壇If the results are Unequal & Equal, it means the ball is in group 1. # e% T5 c& S% J7 R5 S" N( X B$ o7 VIf the results are Unequal & Unequal, it means the ball is in group 2.5.39.217.77/ C7 R/ }+ u: ~$ `4 ?& d9 m: R9 K
) q! D+ _' s- m) l- q! y! I. }/ AOnce you determine the group that contains the ball.6 `0 a4 L- s2 A2 B3 w. t
Simply weigh two of the balls
發表於 2007-11-15 03:54 PM
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