divde the 12 balls into 3 sets of 4. / t v. \6 G3 F# c* U f9 ^weight any 2 sets. 7 `2 o9 Q' l! s6 t3 B4 r! KTVBNOW 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。if the 2 sets are equal, then you know the heavy one is in the third4 c: Q! ^# u* O7 ]
if one of the 2 is heavier, then the heavy one is in that set公仔箱論壇& F, t3 Y! |; E# F- T8 x
then divide the 4 balls into 2.tvb now,tvbnow,bttvb2 ^ c. o+ F3 A7 z/ _- O' m
weigh them ; V6 C' h" Y f/ W+ S, z) L( bTVBNOW 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。and divide the heavier into 1TVBNOW 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。- N# }( H9 }) T
and weight them. 7 e3 M6 f) N. J! c: t1 kTVBNOW 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 x weighing and get the ans. 5.39.217.77- ^8 C* e1 _* \1 K% C9 b
in less than 15 secs.
1. 6 aside and weight.' J7 S3 \, T& o7 S' O& V# b# ~
2. heavier side from (1), 3 aside weight again.! J! Y- B& F4 V* V1 X: e9 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. ( h* M7 l9 x0 L9 ]" MTVBNOW 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。tvb now,tvbnow,bttvb7 a1 u( J; a7 I- E6 x- v
but i have a question. 重量異常 can be heavier or lighter.... so......