1st trial - put 6 balls at each side .. take out the lighter 6 balls
( Y* o5 z" S) Q+ D2nd trial - put the heavier 6 balls by 3 balls at each side
& F1 r4 X( b. elastly, take out the lighter 3 balls.... now left 3 balls..tvb now,tvbnow,bttvb7 e9 m2 Z9 E5 j, B) F
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... |