put 3 balls on each side, ( T, K) v8 v% Q
if balance, we can prove that all 6 balls on the 天平 is normal,
/ \" y. V) ?1 C- fif not balance, we can prove that the 6 balls outside the 天平 is normal.
0 h8 l+ {/ r# [% a% y: m1 `www2.tvboxnow.comthen use the proved-normal ball on one side and put the other ball on other side
1 {4 }" S' S0 p1 e8 lwww2.tvboxnow.comto determine the abnormal is heavy and light |