1st trial - put 6 balls at each side .. take out the lighter 6 ballstvb now,tvbnow,bttvb4 W/ C, f' D7 j3 w0 y0 Y
2nd trial - put the heavier 6 balls by 3 balls at each side
% P# [7 ^2 ?. vlastly, take out the lighter 3 balls.... now left 3 balls..$ z* j* x2 O8 d
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... |