1st trial - put 6 balls at each side .. take out the lighter 6 ballstvb now,tvbnow,bttvb8 o8 M) X! L) ]8 B8 m) ?
2nd trial - put the heavier 6 balls by 3 balls at each side
. t9 i" z! u- ^0 [* ^9 A" S" n% m公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..tvb now,tvbnow,bttvb8 T3 R' t1 {, m1 L6 S8 [ z
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... |