1st trial - put 6 balls at each side .. take out the lighter 6 balls公仔箱論壇4 {- ~) i* H5 m, T3 A2 {1 }+ ?
2nd trial - put the heavier 6 balls by 3 balls at each sidetvb now,tvbnow,bttvb) ]. l; p: D$ S5 | h
lastly, take out the lighter 3 balls.... now left 3 balls..
% U5 J! T5 |8 I2 s+ y! n+ N8 gos.tvboxnow.com3rd trial - put 1 ball on each side, left 1 ball on table. if both sides balance, the ball on table is the heaviest. if one side on the scale is heavier then it is the heaviest... |