1st trial - put 6 balls at each side .. take out the lighter 6 balls
# L/ Q( [# @- d+ J& ntvb now,tvbnow,bttvb2nd trial - put the heavier 6 balls by 3 balls at each side
1 n. F+ P2 w8 Xlastly, take out the lighter 3 balls.... now left 3 balls..公仔箱論壇' P! x* t# |, E& ]- e5 @
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... |