1st trial - put 6 balls at each side .. take out the lighter 6 balls
) L3 J, _% \8 }6 T1 J2nd trial - put the heavier 6 balls by 3 balls at each side
& }& {% n K# Zlastly, take out the lighter 3 balls.... now left 3 balls..
) Y7 a' ? S3 Atvb now,tvbnow,bttvb3rd 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... |