lux1261

答案!!!!!!!!!答案!!!!!!!!!!!答案!!!!!!!!!!!!!1

lesley

^:)^ >:D<

leekh

thx

jc49

let cc

Special_Forces

not possible

sm911118

不知道要怎麼做阿??

laou

hao

jen198053

there got more simple way to do it, just read my way, the one i answered before

samkk123

the

hakis

see 了

jenfien

第一次,一边5个称,若质量没有异常就只称剩下的2个就知道异常的那个了;若有异常就把异常的那5个用一边2个称第二次,若没有异常就是剩下的那个异常了,若有异常就把异常的那2个再2一边1个称第三次就知道了

fxenon

how?

nyb

先分3个一堆0 q* J: ~9 m7 u% G
共四堆
8 D5 I  H, f: o6 a7 W2 w: c! ]9 Htvb now,tvbnow,bttvb称两次得出异常的在那一堆，其轻重
, L# p# c. r$ r0 X, C在异常的那一堆中在称一次公仔箱論壇5 f* Y+ o% m1 b3 H2 J+ N
就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. 2 E/ d* A6 a8 H7 x
weight any 2 sets.
7 W$ }! d* k# }公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third
8 H, w: K: B" z/ [! N, }% j5 e, H公仔箱論壇if one of the 2 is heavier, then the heavy one is in that set
7 `1 c9 j. t+ z+ ~$ G: H) Dthen divide the 4 balls into 2.3 |/ E' f8 r" a0 ^* J0 L) u
weigh them
1 y7 ]6 n. \% @/ W+ `and divide the heavier into 15.39.217.76$ p$ x1 b2 h+ z' d* N6 j
and weight them.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。6 F3 r) ~6 d+ X& ?8 v4 N7 s  r
3 x weighing and get the ans.  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。% e" W: T( F- X" V
in less than 15 secs.

kino_kino

1. 6 aside and weight.
, j5 T1 H$ i  p+ N, g公仔箱論壇2. heavier side from (1), 3 aside weight again.tvb now,tvbnow,bttvb( L2 ~" t( l5 m
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,bttvb6 T! N& @+ m2 z, g) Q, j- l
' P' S$ ^6 ^4 o4 M( K# b
but i have a question. 重量異常 can be heavier or lighter.... so......