divde the 12 balls into 3 sets of 4. 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。+ @- c' i- Q0 c7 _
weight any 2 sets. : v7 _9 v8 Y5 [# T& kif the 2 sets are equal, then you know the heavy one is in the thirdos.tvboxnow.com( P2 [0 g! }! e. E2 v6 H9 k
if one of the 2 is heavier, then the heavy one is in that set( D( f9 r; v3 O* E7 G3 n
then divide the 4 balls into 2.0 k% D7 O7 D7 K$ H
weigh them ) w: p3 [+ [1 K" W _: ]and divide the heavier into 1tvb now,tvbnow,bttvb7 u" U9 K5 i; ]" Z& Y
and weight them.# ~9 w+ n6 U2 U" t4 C: f
3 x weighing and get the ans. & f1 B$ f' f9 k/ y9 S
in less than 15 secs.
1. 6 aside and weight.3 V5 m3 [+ B3 |: X9 d
2. heavier side from (1), 3 aside weight again.os.tvboxnow.com: A% j5 O2 [2 \+ s( i; S5 U
3. heavier side from (2), take 2 out of 3 to weight. If equal weight the one not on the scale is the heavier one. else the heavier one on the scale is the odd one. tvb now,tvbnow,bttvb+ z6 e$ ]! ]9 N; A5 b
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but i have a question. 重量異常 can be heavier or lighter.... so......