1st trial - put 6 balls at each side .. take out the lighter 6 ballstvb now,tvbnow,bttvb( z; O" u* n" R" A4 [/ N @
2nd trial - put the heavier 6 balls by 3 balls at each side% @& Y h$ p3 s7 j4 x
lastly, take out the lighter 3 balls.... now left 3 balls..2 \$ P/ y* V9 e+ Q0 ]) G5 v
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... |