Divide 3 groups first.
( W& ~# j. M5 }/ D* A2 N/ QTVBNOW 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.
K2 i( `5 c" G3 x+ h C6 N; IWeight any 2 groups [1st]0 E4 W: ~+ r/ ^, d' O9 s
then you will know the heavier ball in which group.tvb now,tvbnow,bttvb8 V, e+ F7 Y7 z% W* W- p
Weight any 2 balls in that group [2nd]
0 }- u: A/ l \* b/ cthen you will know the heavier ball in which 2 balls.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。( z) `# E' g1 A
Repeat again in remainders [3rd]
& i U; @1 o, y# L, [tvb now,tvbnow,bttvbGot the heavier ball. |