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5.39.217.77:88986 a+ D5 A! n( w6 i+ H" W6 U3 N# o& Y3 c
共四堆
" F" ?% p7 X% e6 E! T/ sTVBNOW 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。称两次得出异常的在那一堆，其轻重5.39.217.77:8898% m! C4 x% e; U% J1 t
在异常的那一堆中在称一次
" y& {9 j% l& {" G, y, C5.39.217.77:8898就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. 公仔箱論壇( t9 g% b  s3 |9 Q: R, F% ]
weight any 2 sets.公仔箱論壇% t4 T% i) p; j. h# K  y
if the 2 sets are equal, then you know the heavy one is in the thirdtvb now,tvbnow,bttvb. I; B2 g( g7 ]- ~# q( t) E4 I
if one of the 2 is heavier, then the heavy one is in that set
) a* S# K" [+ E; ~then divide the 4 balls into 2.
# L. `- c) W% {! R  |weigh themTVBNOW 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。6 r( {. B. k( P! s
and divide the heavier into 19 k! w0 _# C' T8 L: ~/ b) y
and weight them.: k" b% E. E* {6 Z  S0 \
3 x weighing and get the ans.  
/ r3 L$ r- _. p6 V0 Z1 C6 g, N  PTVBNOW 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.5.39.217.77:8898' {( O/ J/ j, e* K7 Y, M7 i
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。8 |8 F, x% `# P& G1 l% T$ H! i
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. tvb now,tvbnow,bttvb. D7 L( x8 V& }: w, G& C$ j2 R. i  r
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。, M" a* f4 ?% f
but i have a question. 重量異常 can be heavier or lighter.... so......