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5 s, s- p/ m. u' p
共四堆
+ H- d4 U5 v, b6 {% _; @0 a称两次得出异常的在那一堆，其轻重
0 D  Y; A  y5 Y0 f9 ktvb now,tvbnow,bttvb在异常的那一堆中在称一次8 a/ u! u) h) W4 i# P3 O
就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4.
' }* j, Z% u1 P8 z% l# v# M9 T% a% L) \公仔箱論壇weight any 2 sets.www2.tvboxnow.com9 f1 ^8 K% f- @6 K5 p
if the 2 sets are equal, then you know the heavy one is in the thirdtvb now,tvbnow,bttvb9 s1 i7 D6 b6 E
if one of the 2 is heavier, then the heavy one is in that set
- j- e' ~: d8 A1 \, e2 aTVBNOW 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。then divide the 4 balls into 2.- ~) A- t8 }5 m$ y
weigh themwww2.tvboxnow.com: {6 s' B2 H6 M, d7 n9 d- d+ i# a
and divide the heavier into 12 J) M3 h5 W- h7 g: T5 V& E" w9 x
and weight them.
/ l& F3 J; J' z, o  b' T6 Ntvb now,tvbnow,bttvb3 x weighing and get the ans.  
# }1 X2 w9 K  A- ^7 ^. Sin less than 15 secs.

kino_kino

1. 6 aside and weight.
+ `, q/ H5 h1 h& L; y公仔箱論壇2. heavier side from (1), 3 aside weight again.
# \$ `- q5 p  }- q/ O) }; M3. 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. 9 n  V1 r3 M" B+ [6 q2 Y: F% q3 u
+ a0 `3 ]/ O" ^6 t4 I
but i have a question. 重量異常 can be heavier or lighter.... so......