1st trial - put 6 balls at each side .. take out the lighter 6 ballstvb now,tvbnow,bttvb% W2 f j0 e9 s$ E( ^2 X* K) J2 u
2nd trial - put the heavier 6 balls by 3 balls at each side% X( \- e5 h, B6 r# d9 M
lastly, take out the lighter 3 balls.... now left 3 balls..
, C" \' l& N. V) z! H. i5.39.217.763rd 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... |