1st trial - put 6 balls at each side .. take out the lighter 6 balls
! h( f& c& W$ c- e' k7 d2nd trial - put the heavier 6 balls by 3 balls at each side
( o+ c; G- F1 c4 r# \& [tvb now,tvbnow,bttvblastly, take out the lighter 3 balls.... now left 3 balls..
9 T. `/ k" D+ Z ~2 ?$ V0 C0 m6 @公仔箱論壇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... |