1st trial - put 6 balls at each side .. take out the lighter 6 balls
# }- X- R, R* j' V# O) v2nd trial - put the heavier 6 balls by 3 balls at each side
3 v- ]3 p3 F" I8 V+ {1 ]$ B公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..tvb now,tvbnow,bttvb/ x% y; \7 r/ f0 H
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... |