1st trial - put 6 balls at each side .. take out the lighter 6 balls公仔箱論壇: y; }9 Y6 D! ~0 |
2nd trial - put the heavier 6 balls by 3 balls at each side
) ]0 b8 @9 P7 A/ y" stvb now,tvbnow,bttvblastly, take out the lighter 3 balls.... now left 3 balls..
8 W: }4 L/ V1 \tvb 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... |