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
* y, U/ C% Q& \+ V共四堆
: X/ ?) F# r! ]# v4 w" `' ewww2.tvboxnow.com称两次得出异常的在那一堆，其轻重www2.tvboxnow.com% y2 g: C0 k' K1 Y* S/ e- L7 S
在异常的那一堆中在称一次% ]+ c6 D1 o6 j. W* I
就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. 公仔箱論壇7 r1 D; d, \% T/ U
weight any 2 sets.
4 S" W: Y# |! w5 n! Utvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the thirdwww2.tvboxnow.com( Z' v1 @' y  J+ R
if one of the 2 is heavier, then the heavy one is in that set公仔箱論壇) x. z; L$ T4 O7 j) C
then divide the 4 balls into 2.
2 f9 y$ ~7 `, ~- C; e; qtvb now,tvbnow,bttvbweigh them
5 V# H+ ^0 w' N, w! W) eand divide the heavier into 1
1 i/ \+ E- ~' ]# V4 y, t5 }8 H& [# d% r5 ^and weight them.
9 s* {5 H+ P" Y$ E' R3 x weighing and get the ans.  
' E& f( a# B! f, K8 Q  e公仔箱論壇in less than 15 secs.

kino_kino

1. 6 aside and weight.
: b$ t; R! N  M* O2. heavier side from (1), 3 aside weight again.
* I! V  E- K2 G4 U0 }9 K+ o) N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 [  {  R! \3 J2 v! X1 X9 `" p7 l/ Pwww2.tvboxnow.com
9 @/ J) A- N; ~3 C# p% Q公仔箱論壇but i have a question. 重量異常 can be heavier or lighter.... so......