Divide the 12 balls into 4 groups of 3's.tvb now,tvbnow,bttvb/ h' e0 l T8 v/ [
Weigh group 1 & 2
/ |+ Z# z3 L+ ~- q& J. F公仔箱論壇then weigh group 2 & 3tvb now,tvbnow,bttvb4 J2 a: t* ^7 a' ]. A8 T5 ]
If the results are Equal & Equal, it means the ball with the different weight is in group 4.
3 A7 c2 v- I) D& \$ ]公仔箱論壇If the results are Equal & Unequal, it means the ball is in group 3.
' _+ D# E' N/ j0 v+ Xwww3.tvboxnow.comIf the results are Unequal & Equal, it means the ball is in group 1.
, w( Z8 a, c) w2 P9 ?7 v1 JIf the results are Unequal & Unequal, it means the ball is in group 2.www3.tvboxnow.com" ?! a* l- R% z. N4 f
www3.tvboxnow.com% `" C5 P( ^- Y
Once you determine the group that contains the ball.tvb now,tvbnow,bttvb2 E, V1 L5 S% o0 s. S$ X. K
Simply weigh two of the balls |