Divide the 12 balls into 4 groups of 3's.
& I# s) V: r i0 qtvb now,tvbnow,bttvbWeigh group 1 & 2( t3 j& l; ]! C' s, q" v: u7 v
then weigh group 2 & 3
+ Z9 W' q O& j! j# @& T% e: xIf the results are Equal & Equal, it means the ball with the different weight is in group 4.www3.tvboxnow.com1 u: J5 `. g5 ?2 W/ b0 M
If the results are Equal & Unequal, it means the ball is in group 3.公仔箱論壇3 x5 ?1 L' A, s- J/ d
If the results are Unequal & Equal, it means the ball is in group 1.tvb now,tvbnow,bttvb8 c9 S- e7 H r- e' d# q: J
If the results are Unequal & Unequal, it means the ball is in group 2.
. D, a5 V* W1 m* }+ I) CTVBNOW 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。/ u. f, p3 ?, }8 K, C
Once you determine the group that contains the ball.
) Z6 t! o0 F0 W9 F' t% RSimply weigh two of the balls |
發表於 2007-11-15 03:54 PM
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