Divide 3 groups first.
' L9 Q8 G& L5 d: ~$ k( hTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。i.e. 4 x 4 x 4.5.39.217.76; e! @* n# B2 r7 I, f
Weight any 2 groups [1st]
; x; K6 I) g+ Btvb now,tvbnow,bttvbthen you will know the heavier ball in which group.5.39.217.766 K' \6 E5 v5 N. s8 b
Weight any 2 balls in that group [2nd]TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。 D: x1 ?, ^+ U9 p9 w" n
then you will know the heavier ball in which 2 balls.
0 V F1 _: K, ? t) RRepeat again in remainders [3rd]
{3 `' H& U9 X, N3 _Got the heavier ball. |