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
4 p  X. y" \. |" j$ a共四堆
6 r, H4 z/ Q) t$ E! I7 F称两次得出异常的在那一堆，其轻重6 ~6 \% d: l' e" B# ~
在异常的那一堆中在称一次9 p/ P) w3 [5 ]9 j8 [% i% @
就可以找到了

ceteriz

divde the 12 balls into 3 sets of 4. 5 ]# q6 V1 D- k  J1 U
weight any 2 sets.www2.tvboxnow.com7 b0 d5 S7 ^" R/ n+ {. J5 v
if the 2 sets are equal, then you know the heavy one is in the third: Y: f9 q1 w& G0 P
if one of the 2 is heavier, then the heavy one is in that set
2 ^4 j6 r! ~5 n6 h; x, Y9 R公仔箱論壇then divide the 4 balls into 2.
& w3 D4 M/ V# P) @+ p" W, o* aweigh them
3 A$ S  _& q' _+ v2 Twww2.tvboxnow.comand divide the heavier into 1
" t0 q6 ]! I' R0 nand weight them.公仔箱論壇& ]4 ~0 o/ F' P+ q* ^8 Z
3 x weighing and get the ans.  9 l: o$ _3 K: H: X; a
in less than 15 secs.

kino_kino

1. 6 aside and weight.
$ J9 h* I7 r% J2 `www2.tvboxnow.com2. heavier side from (1), 3 aside weight again.
" x9 T1 S5 q; k2 \6 r3. 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.
! z- p( S. ^3 w  ~" r* qTVBNOW 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。www2.tvboxnow.com+ u  e. X4 @" {9 V
but i have a question. 重量異常 can be heavier or lighter.... so......