put 3 balls on each side,
/ n- K& }. t+ D9 q, mif balance, we can prove that all 6 balls on the 天平 is normal,
! V+ X% O. z7 g/ T5 [9 x1 vtvb now,tvbnow,bttvbif not balance, we can prove that the 6 balls outside the 天平 is normal.
! i3 I c8 h1 a; atvb now,tvbnow,bttvbthen use the proved-normal ball on one side and put the other ball on other side
7 a7 I+ \# R* ]8 T- ~$ _5.39.217.76to determine the abnormal is heavy and light |