1st trial - put 6 balls at each side .. take out the lighter 6 ballstvb now,tvbnow,bttvb7 C, d& f. B" X& Z( ?, H5 t
2nd trial - put the heavier 6 balls by 3 balls at each side
$ O/ ?7 z: y) N9 xtvb now,tvbnow,bttvblastly, take out the lighter 3 balls.... now left 3 balls..9 f1 X/ y7 T" E. d- a
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... |