Divide the 12 balls into 4 groups of 3's.
, v/ }( a4 s+ O- l7 Dos.tvboxnow.comWeigh group 1 & 2
! f" @+ J6 F7 ~' L* Atvb now,tvbnow,bttvbthen weigh group 2 & 3# `/ v0 l4 @( e2 ^9 Z# G. C
If the results are Equal & Equal, it means the ball with the different weight is in group 4.
6 \2 A+ E" f* etvb now,tvbnow,bttvbIf the results are Equal & Unequal, it means the ball is in group 3.
9 ?0 o+ h1 J) U" L- P. `0 aIf the results are Unequal & Equal, it means the ball is in group 1.1 ]1 t2 R3 e- C- D6 E. v/ H
If the results are Unequal & Unequal, it means the ball is in group 2.
9 I: c; `$ J# k公仔箱論壇tvb now,tvbnow,bttvb$ u3 J! o' k8 `. j# p) @4 s8 [* T
Once you determine the group that contains the ball.
2 N8 N) f C& L: ~5 oos.tvboxnow.comSimply weigh two of the balls |