1st trial - put 6 balls at each side .. take out the lighter 6 balls
h# F) v$ g5 {* otvb now,tvbnow,bttvb2nd trial - put the heavier 6 balls by 3 balls at each side
& x2 ?8 S, I8 l! z8 Olastly, take out the lighter 3 balls.... now left 3 balls..
& m5 @' ?% L* _, A: F1 u# ^公仔箱論壇3rd 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... |