put 3 balls on each side, 5.39.217.77:8898' u8 [) p/ l, H, B4 ], P) R
if balance, we can prove that all 6 balls on the 天平 is normal,
1 i. e. N# ?0 c0 w k9 Sif not balance, we can prove that the 6 balls outside the 天平 is normal.
$ ?$ G9 s$ N7 D( S+ a3 f5.39.217.77:8898then use the proved-normal ball on one side and put the other ball on other side # t# I& k6 `' c" a
to determine the abnormal is heavy and light |