put 3 balls on each side,
: F' u; c1 m$ ?# r6 G9 Z: R( B; Y) Ytvb now,tvbnow,bttvbif balance, we can prove that all 6 balls on the 天平 is normal,
/ q/ {# M0 O+ D3 _! ^( Q4 w公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.
( B2 w! ~3 f4 B" athen use the proved-normal ball on one side and put the other ball on other side
: _) Y, u! V# A" @ J/ T: V+ Q6 T5.39.217.77:8898to determine the abnormal is heavy and light |