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。0 m5 J) x- P, J- N/ e$ H9 b
共四堆tvb now,tvbnow,bttvb4 [8 i/ F4 b. N+ A3 a9 U
称两次得出异常的在那一堆，其轻重
2 }: ]" y" D( A0 h; ?6 e9 k公仔箱論壇在异常的那一堆中在称一次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。$ s' f& i: X4 L5 q2 f) U! U
就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. ; P- b! z7 }$ X* V( |
weight any 2 sets.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。2 F* s5 G; \4 \8 O
if the 2 sets are equal, then you know the heavy one is in the third
3 b* W- Q7 {2 Nif one of the 2 is heavier, then the heavy one is in that set( f6 o) R$ s9 O: c0 x1 ?
then divide the 4 balls into 2.+ q6 b9 |. i* W* T" W! _: g8 ~
weigh them公仔箱論壇" ?& Y: V% O# c- X/ ^+ B
and divide the heavier into 19 O1 K8 ~. S3 }4 R8 H
and weight them.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。& Y0 a. T) P9 L6 ~  |; W: y
3 x weighing and get the ans.  
) u# X* p& ?8 |6 R( p公仔箱論壇in less than 15 secs.

kino_kino

1. 6 aside and weight.1 r4 g  o' t! L& {8 K5 i( Q/ D
2. heavier side from (1), 3 aside weight again.
) s+ B( f! M6 A6 R- Q8 [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,bttvb0 z! u6 A( u6 `8 ?
' ]( l; D, d# k
but i have a question. 重量異常 can be heavier or lighter.... so......