put 3 balls on each side,
) e% n( I* `$ Q8 }. x! g9 ~tvb now,tvbnow,bttvbif balance, we can prove that all 6 balls on the 天平 is normal,
1 E9 G8 }( a9 O3 n' ~5.39.217.76if not balance, we can prove that the 6 balls outside the 天平 is normal.tvb now,tvbnow,bttvb6 k0 @$ p; ?& H9 ?: K6 ]3 @
then use the proved-normal ball on one side and put the other ball on other side 8 y6 ?9 F( D$ h
to determine the abnormal is heavy and light |