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
/ D$ V: |2 n8 C  p; ftvb now,tvbnow,bttvb共四堆
  S7 }3 r# b' w3 ?" U9 O; o称两次得出异常的在那一堆，其轻重9 Y  m6 |# ?* i6 u0 B1 Y
在异常的那一堆中在称一次
. s% A/ _, y+ ^9 y2 [: \1 xtvb now,tvbnow,bttvb就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4.
. c  ^' @  k4 l, t( G* s6 btvb now,tvbnow,bttvbweight any 2 sets.公仔箱論壇8 T8 B* V  ]7 V8 S$ O
if the 2 sets are equal, then you know the heavy one is in the third
4 s2 P1 B. Z; `  V) STVBNOW 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 one of the 2 is heavier, then the heavy one is in that set  O* G: q* V, F6 a8 U$ f
then divide the 4 balls into 2.( O8 m0 F+ L: _+ N
weigh themtvb now,tvbnow,bttvb# T8 ]( {9 C" e2 \# ~3 j9 ~3 k3 f5 p
and divide the heavier into 1公仔箱論壇+ A8 S- D9 C5 u" X2 ?5 P
and weight them.: S* H( y5 I9 I" t1 ]. ]# s
3 x weighing and get the ans.  
2 r& b6 u8 o. v) |/ k* |" E1 V2 sin less than 15 secs.

kino_kino

1. 6 aside and weight.
! A2 `: D, e9 J% vtvb now,tvbnow,bttvb2. heavier side from (1), 3 aside weight again.公仔箱論壇! _# W& h) p7 G! `8 c1 ~
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. 4 p+ t* A6 S/ C; N

/ R/ A3 t! b8 |! l! V" g# dtvb now,tvbnow,bttvbbut i have a question. 重量異常 can be heavier or lighter.... so......