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$ @9 d7 i% S1 w. o# l# ^7 E
共四堆5.39.217.767 s9 b' ^2 k! o9 N1 {
称两次得出异常的在那一堆，其轻重' D9 q( n8 ?( }" Y8 g$ g, h2 R
在异常的那一堆中在称一次
& H: s# [5 E, L% T+ t2 ]& Y0 }! Itvb now,tvbnow,bttvb就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. 5.39.217.763 X' ^* W( F  }5 p
weight any 2 sets.5.39.217.764 |2 j$ n* q" W6 p" j1 J
if the 2 sets are equal, then you know the heavy one is in the third
! d7 @- U+ P: j/ L$ b) H: aif one of the 2 is heavier, then the heavy one is in that set
- c( j  F7 R  O. q& p5 h8 a# H: rthen divide the 4 balls into 2.公仔箱論壇  r. Z0 H0 Z0 a
weigh them
. g% A6 }- _2 f" Ntvb now,tvbnow,bttvband divide the heavier into 1" A" B- N- t6 D- j+ B
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。7 j3 ]* {& K5 M1 i; H- Z
3 x weighing and get the ans.  
' Z8 v7 }9 @& j% c9 i' lTVBNOW 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 W% U, z) i* D1 r- l; [- u
2. heavier side from (1), 3 aside weight again.
8 E! g* _9 A3 |' d% J: y6 U  Y  P3. 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.
' ]/ u! d5 N+ S2 DTVBNOW 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。
, X. ~# t3 B" r$ eTVBNOW 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。but i have a question. 重量異常 can be heavier or lighter.... so......