divde the 12 balls into 3 sets of 4.
" y) f6 K$ c9 W- Tweight any 2 sets.tvboxnow.com0 s9 |" X6 ~( x- K1 N2 h
if the 2 sets are equal, then you know the heavy one is in the third; P4 [# r4 \: n9 V
if one of the 2 is heavier, then the heavy one is in that set
, f( T. K( A' i( a. Q9 Dthen divide the 4 balls into 2.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 f2 ~5 c) e' \/ D4 c
weigh them
: H6 q" m2 I! }, F. r8 Oand divide the heavier into 1tvboxnow.com+ O8 `1 b/ V2 v' r% T
and weight them.
, O5 `7 H, i) z- ktvb now,tvbnow,bttvb3 x weighing and get the ans.
9 N/ s8 Y3 @5 GTVBNOW 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。in less than 15 secs. |