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
. L  o+ V1 o& M5 M# R% A% Z共四堆! s1 E, p! M$ _( [: [7 i3 x
称两次得出异常的在那一堆，其轻重
4 o. j/ V7 _! L* t- m# M" y在异常的那一堆中在称一次
; q' V! }7 y5 ^公仔箱論壇就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. # X- T: @7 o8 j$ F5 e
weight any 2 sets.tvb now,tvbnow,bttvb! W8 @: ^2 Y4 Q
if the 2 sets are equal, then you know the heavy one is in the third公仔箱論壇  |" T# p' _. s: s' ?1 u/ h1 O
if one of the 2 is heavier, then the heavy one is in that set
8 q- E) [" M" u1 @7 fthen divide the 4 balls into 2.
5 S8 m* w2 q$ {) vweigh them7 A% r3 K% L# S! ]6 Z
and divide the heavier into 1
6 h. t- D, J3 n8 Dand weight them.# h7 p2 N1 N$ r' m) j8 j3 e  }. E- L
3 x weighing and get the ans.  
& x* g! Z$ [! a3 @/ R$ sin less than 15 secs.

kino_kino

1. 6 aside and weight.www3.tvboxnow.com( V8 e1 o# `1 F3 l4 S9 \7 Q
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。5 `" p7 e2 w6 O3 v& q, h7 e) z1 @
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. 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。4 B# e. F, n- t0 s# r
www3.tvboxnow.com8 E: p3 s5 T+ u1 g- {, E# n
but i have a question. 重量異常 can be heavier or lighter.... so......