1st trial - put 6 balls at each side .. take out the lighter 6 balls
5 D- E" u$ R7 r# s2 `% r/ d) ?' ^2nd trial - put the heavier 6 balls by 3 balls at each side5.39.217.776 ?& ]# J3 C6 z# Z9 v0 v, v
lastly, take out the lighter 3 balls.... now left 3 balls..% L1 c1 I9 b! J+ b9 T) M8 @) A
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... |