put 3 balls on each side,
1 l( z- H+ ]# w+ v1 o: P: Tif balance, we can prove that all 6 balls on the 天平 is normal,
, ?, u8 }7 b* H8 \; m( G4 bif not balance, we can prove that the 6 balls outside the 天平 is normal.tvb now,tvbnow,bttvb4 ~- u$ K0 _6 O
then use the proved-normal ball on one side and put the other ball on other side os.tvboxnow.com$ N4 N- ~$ N8 v9 W& T
to determine the abnormal is heavy and light |