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4 k: V! ]- O" q1 i: {% @
共四堆
2 K8 A# @  _' ~: ?) `$ l2 h称两次得出异常的在那一堆，其轻重
, {7 F2 K5 l+ o& o; J" y( v: k0 S& q: I在异常的那一堆中在称一次
% F: j# o) A, W! Z- o9 c6 m5.39.217.76就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. # G( J, u" r8 j2 J4 i
weight any 2 sets.
+ ^7 m- h; @* A" N/ {1 Utvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the third
) ], l4 r; U. E5 X9 r0 U3 @if one of the 2 is heavier, then the heavy one is in that set
) `% N; S9 N, Z; Cthen divide the 4 balls into 2.5.39.217.76( b9 c5 F0 u+ n( D. H
weigh them公仔箱論壇% ?# z/ ~, |- D% g, ?0 `+ D  C5 z
and divide the heavier into 1) O3 w: W" I8 p# {
and weight them.
0 n+ J! _5 v3 ]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。3 x weighing and get the ans.  
" O9 h2 H+ x( s+ hTVBNOW 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。in less than 15 secs.

kino_kino

1. 6 aside and weight.公仔箱論壇7 L: y( P8 {8 M  ], q- e
2. heavier side from (1), 3 aside weight again.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! U( s! U0 ~5 E' h$ M6 X2 d9 S
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.
2 ?& u' G3 r  y; y$ f' {9 g6 m
, L( m6 g, {  e: Y$ C! _1 Otvb now,tvbnow,bttvbbut i have a question. 重量異常 can be heavier or lighter.... so......