Divide the 12 balls into 4 groups of 3's.& S, R/ B. U$ O+ M
Weigh group 1 & 25 g: o! f9 T# v% [! Y
then weigh group 2 & 3tvb now,tvbnow,bttvb& ~$ f: b+ V- o* S5 [, t- n; b
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。5 W: t4 r2 X% C: Y+ {8 G
If the results are Equal & Unequal, it means the ball is in group 3. 9 B; Q" U( m6 bwww3.tvboxnow.comIf the results are Unequal & Equal, it means the ball is in group 1. / U1 q' b1 c4 T" v# o: K' u% Y( Y3 HTVBNOW 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 Unequal & Unequal, it means the ball is in group 2.9 ]2 c: V, `7 s* d6 }
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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。: b4 K. E% n$ P9 N" n
Simply weigh two of the balls
發表於 2007-11-15 03:54 PM
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