Divide the 12 balls into 4 groups of 3's.; p- k# Y: l$ d* C$ e* I* X# f
Weigh group 1 & 2 " J; v" ^ `% p2 Y2 C) Xtvb now,tvbnow,bttvbthen weigh group 2 & 3 . o6 @2 d2 c$ l3 U2 PIf the results are Equal & Equal, it means the ball with the different weight is in group 4. # t$ j2 m' {/ n* d6 s, s! y" V3 ~; d/ |. eIf the results are Equal & Unequal, it means the ball is in group 3.) e: G( r( O+ \. `
If the results are Unequal & Equal, it means the ball is in group 1. 7 h; e/ O- r) mIf the results are Unequal & Unequal, it means the ball is in group 2. 2 }" N# ~0 |9 o+ N3 Q; `5 H公仔箱論壇 , ^) i4 ^( H7 Z8 |+ |Once you determine the group that contains the ball.www2.tvboxnow.com" s# s3 A7 }" ^5 |) e
Simply weigh two of the balls
發表於 2007-11-15 03:54 PM
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