Divide 3 groups first.
1 j8 T7 H( f+ W4 q9 p+ mi.e. 4 x 4 x 4.
% |' Y3 f! ]" I: L7 q8 l5.39.217.77Weight any 2 groups [1st]
$ O' E0 h! s* F5 ^/ r$ p1 O7 qthen you will know the heavier ball in which group.; t2 {+ H- d. y! {% P2 h! @$ [
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。2 v0 Q0 F6 m' v: c0 F1 `
then you will know the heavier ball in which 2 balls.5.39.217.77" \; Y, M$ M2 S: V) p) M& G5 @
Repeat again in remainders [3rd]
: w8 F, _# k+ [# |) P$ p# t1 A2 JGot the heavier ball. |