Divide the 12 balls into 4 groups of 3's.
, {. F r- j4 P- ]Weigh group 1 & 2tvb now,tvbnow,bttvb: { g0 c7 c; z, F$ {; V
then weigh group 2 & 3' P2 v5 ~ W4 d" ^( ~
If the results are Equal & Equal, it means the ball with the different weight is in group 4.
0 }( h+ Y7 f X; c1 Ltvb now,tvbnow,bttvbIf the results are Equal & Unequal, it means the ball is in group 3.公仔箱論壇5 y l0 N, ]# y- g' d; _
If the results are Unequal & Equal, it means the ball is in group 1.tvb now,tvbnow,bttvb' r! w6 ~ I. J4 ]# G' X
If the results are Unequal & Unequal, it means the ball is in group 2.$ A% Z' ~( p% E) D! Y, n# C; T
5 w, p* S) ^3 L
Once you determine the group that contains the ball.
% T% j5 a1 L4 t* [tvb now,tvbnow,bttvbSimply weigh two of the balls |
發表於 2007-11-15 03:54 PM
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