Divide 3 groups first.
; r8 h1 R' k: eTVBNOW 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 F$ s! o# G, d
Weight any 2 groups [1st]
" }% M/ ^ g# Stvb now,tvbnow,bttvbthen you will know the heavier ball in which group.
! [0 x' V2 @3 d: e! u' _公仔箱論壇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。3 i b9 ]' @; C( |- u
then you will know the heavier ball in which 2 balls.
2 X' p% @) Q, J- Q# uRepeat again in remainders [3rd]
! p$ h4 f6 K, _/ ewww3.tvboxnow.comGot the heavier ball. |