Divide the 12 balls into 4 groups of 3's.tvb now,tvbnow,bttvb7 j- s8 Y1 R7 ]' F4 [3 s4 K
Weigh group 1 & 2
% P: q3 e9 l. `. k9 c6 dtvb now,tvbnow,bttvbthen weigh group 2 & 31 B* _$ n; O7 D( {- z4 b- V
If the results are Equal & Equal, it means the ball with the different weight is in group 4.
1 I' ]7 t, M; `tvboxnow.comIf the results are Equal & Unequal, it means the ball is in group 3.
- P6 y& J4 W; Q" T4 \) OIf the results are Unequal & Equal, it means the ball is in group 1.
6 k/ X3 _. u' a5 J$ BIf the results are Unequal & Unequal, it means the ball is in group 2., D: }; n1 t% p) B$ O
1 l, ?- n1 W: w$ \! OOnce you determine the group that contains the ball.
$ C7 q+ a, {6 u" b- Ytvb now,tvbnow,bttvbSimply weigh two of the balls |
發表於 2007-11-15 03:54 PM
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