1st trial - put 6 balls at each side .. take out the lighter 6 balls
! H' o2 Z# f0 Q( W- dtvb now,tvbnow,bttvb2nd trial - put the heavier 6 balls by 3 balls at each side
g( z! \# J1 t# h9 [. X. p/ D: v公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..5.39.217.762 | Y! c/ S, R: ^( l+ U
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... |