1st trial - put 6 balls at each side .. take out the lighter 6 balls$ R. p& H* a7 X0 f0 s1 w5 d" [/ j: f
2nd trial - put the heavier 6 balls by 3 balls at each side
: o9 `! S- o# Q' W% T, Q% t o! i9 mtvb now,tvbnow,bttvblastly, take out the lighter 3 balls.... now left 3 balls..
2 R% U4 ]5 s! h4 b6 d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... |