put 3 balls on each side,
y+ I/ Q5 u$ B" Q2 n3 ^3 S1 o) F公仔箱論壇if balance, we can prove that all 6 balls on the 天平 is normal,
- c% ^6 [, \$ a- O公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.
: X( v2 p3 h6 @0 s5 Y4 q/ [+ c. cwww2.tvboxnow.comthen use the proved-normal ball on one side and put the other ball on other side
/ c r# w( L+ i; e$ zto determine the abnormal is heavy and light |