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. `, v3 `1 ?9 l5 I0 J
共四堆
5 r$ S  f# h0 w0 R! q( K称两次得出异常的在那一堆，其轻重tvb now,tvbnow,bttvb5 l+ }; J4 F' B: \4 V
在异常的那一堆中在称一次
$ \9 V2 E# k( U9 h  R公仔箱論壇就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4.
; S) k* \. R. a2 y/ u$ X" Y* Vweight any 2 sets.
: w$ {! A7 |( E- E" }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。if the 2 sets are equal, then you know the heavy one is in the third
: k/ M6 u9 P# B! |  N  Y$ wif one of the 2 is heavier, then the heavy one is in that set% ~) T  ?8 N- ?1 h7 g0 M
then divide the 4 balls into 2.
9 a5 K, f7 n3 Z$ Z公仔箱論壇weigh them% j" Q9 H2 b: @. o; a/ R
and divide the heavier into 1
& G& q5 `4 k5 C) `3 T; Ltvb now,tvbnow,bttvband weight them.
' }% A$ w" E% `- b! T! ~7 b3 x weighing and get the ans.  ( t8 T5 \. b5 s, g3 O+ j) _
in less than 15 secs.

kino_kino

1. 6 aside and weight.7 h) B/ b, q; }) J, t2 N4 ]9 }
2. heavier side from (1), 3 aside weight again.
: ~& i! r1 h9 X5 B5 M4 }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. ! w& }) a* n5 D4 e+ h( b" K' E
tvb now,tvbnow,bttvb7 A8 \5 S9 j  H' P2 n- M
but i have a question. 重量異常 can be heavier or lighter.... so......