1st trial - put 6 balls at each side .. take out the lighter 6 ballstvb now,tvbnow,bttvb0 f( ^7 L8 l) ?1 Q5 ~0 N
2nd trial - put the heavier 6 balls by 3 balls at each side
6 C- i" j# h) A9 n% v5 x公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..公仔箱論壇9 I0 i1 O4 g' F K6 x) q
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... |