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
' E6 X5 i6 a- x6 z7 W共四堆
* v7 W3 q3 O# @( V: ktvb now,tvbnow,bttvb称两次得出异常的在那一堆，其轻重
+ R+ V5 r. s) _1 D公仔箱論壇在异常的那一堆中在称一次
2 \/ |4 J  y/ Q0 C$ N就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4.
4 ]1 n( F4 W' w' c0 w5.39.217.77weight any 2 sets.
4 [: F" f! z7 a6 C9 o公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the thirdTVBNOW 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, @& F' O6 a3 K: F
if one of the 2 is heavier, then the heavy one is in that settvb now,tvbnow,bttvb3 F" ]/ j2 O4 Z9 I$ d+ c+ `
then divide the 4 balls into 2.tvb now,tvbnow,bttvb% u$ @. m- s" Z
weigh them
6 [8 S! h' a# Y# {" otvb now,tvbnow,bttvband 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。6 f- K8 D" P& a, ]
and weight them.公仔箱論壇# F2 S. A/ N/ e& ?% N" m
3 x weighing and get the ans.  
4 j: Y- o' K, N- @" v# O* _8 Rin less than 15 secs.

kino_kino

1. 6 aside and weight.5.39.217.77* N4 v4 Y) O0 j* {, \" f; O
2. heavier side from (1), 3 aside weight again.
. t( A1 j2 @5 R0 _9 C! _公仔箱論壇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.
8 w9 o' L  n+ P" [tvb now,tvbnow,bttvb
1 V8 P. V$ N4 f7 D! F) @' Xbut i have a question. 重量異常 can be heavier or lighter.... so......