Divide the 12 balls into 4 groups of 3's. 2 R1 q& d3 \6 M0 R5.39.217.77:8898Weigh group 1 & 2% i9 t5 P5 q7 W8 b' R) Q
then weigh group 2 & 35.39.217.77:8898. b) f6 z1 W) O; w/ f M
If the results are Equal & Equal, it means the ball with the different weight is in group 4.5.39.217.77:8898. ^9 e! C) K1 P* J" e" O& K, r
If the results are Equal & Unequal, it means the ball is in group 3. ; ?% [# e# W% m- atvb now,tvbnow,bttvbIf the results are Unequal & Equal, it means the ball is in group 1.1 a% Y4 k# l6 Y1 Y" e/ K5 v
If the results are Unequal & Unequal, it means the ball is in group 2.3 e; h1 B+ T1 m2 J, w
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Once you determine the group that contains the ball. $ X% c$ v4 c) uSimply weigh two of the balls
[CASE 2]公仔箱論壇3 w. \2 G+ O- p" j. Y+ f e
重D果邊叫A組,輕 D果邊叫B組,為方便稱呼,將A組編為A1,A2,A3,A4,B組編為B5,B6,B7,B8,而頭先C組果4個則是正常波。A組重過B組,即異重波可能是在A組[較正常波重]或在B組[較正常波輕],將A1,B5加一個正常波同A2,B6,B7稱,A3,A4,B8放埋一邊。結果有以下三個﹕