1st trial - put 6 balls at each side .. take out the lighter 6 balls7 ^) N) [$ d5 U2 C$ n
2nd trial - put the heavier 6 balls by 3 balls at each side
: e8 B9 G+ U( m* Z1 B4 b( o% ?5.39.217.76lastly, take out the lighter 3 balls.... now left 3 balls..tvb now,tvbnow,bttvb! ?% S6 H. @% s2 B+ @0 o$ x
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... |