Divide the 12 balls into 4 groups of 3's.
7 z& a/ T' Y. P) a5 vWeigh group 1 & 2
& d d- ^) S0 h, H9 q: E3 Z4 j9 e5.39.217.77:8898then weigh group 2 & 3
+ [2 k) {+ I! P& b$ [) xIf the results are Equal & Equal, it means the ball with the different weight is in group 4.
9 H8 _6 t4 _$ [8 ]6 R O5.39.217.77:8898If the results are Equal & Unequal, it means the ball is in group 3.tvb now,tvbnow,bttvb. g/ w2 n3 C: {! _& i
If the results are Unequal & Equal, it means the ball is in group 1.) W; a% _6 l* [0 w5 B. D
If the results are Unequal & Unequal, it means the ball is in group 2.5.39.217.77:8898# x+ N' f8 A9 P' E1 h' h6 B
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Once you determine the group that contains the ball.
8 q( M+ _6 j5 i5.39.217.77:8898Simply weigh two of the balls |
發表於 2007-11-17 04:52 AM
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