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# R7 F% f/ e: b
共四堆
# Z7 Y' I: C; i" \tvb now,tvbnow,bttvb称两次得出异常的在那一堆，其轻重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。( h* g0 n! g0 `, P+ X( o! ^* k
在异常的那一堆中在称一次
3 S- F' v; b  [% |! f7 vtvb now,tvbnow,bttvb就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. % |, w2 S) ]$ d) b# h
weight any 2 sets.
5 Y: v0 ?6 m3 u1 k8 N4 Stvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the thirdtvb now,tvbnow,bttvb9 Y6 k/ \/ b& D% v6 b) K' Y
if one of the 2 is heavier, then the heavy one is in that set+ j# ^" j2 X1 c1 B3 V
then divide the 4 balls into 2.
( U+ v8 S/ ~0 V' J. Ywww2.tvboxnow.comweigh themtvb now,tvbnow,bttvb' r/ T: y8 m- i! S. n8 A2 V1 x8 \
and divide the heavier into 1tvb now,tvbnow,bttvb* |% B: o+ m& V8 ?# O* A
and weight them.tvb now,tvbnow,bttvb3 f' w& n0 C7 V4 w9 M' N) ~% a& z
3 x weighing and get the ans.  
% G6 I( `# n/ K9 G3 @* ]: @6 jtvb now,tvbnow,bttvbin less than 15 secs.

kino_kino

1. 6 aside and weight.tvb now,tvbnow,bttvb6 _8 }4 u" g) f  b$ I
2. heavier side from (1), 3 aside weight again.
) X( C% J4 e' h" k$ 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. + K7 s8 u8 g2 i$ b! q0 F

( z! B# I# ^6 j. v' G2 Tbut i have a question. 重量異常 can be heavier or lighter.... so......