返回列表 回復 發帖
答案!!!!!!!!!答案!!!!!!!!!!!答案!!!!!!!!!!!!!1
^:)^ >:D<
thx
let cc
not possible
不知道要怎麼做阿??
hao

the model answer is stupid

there got more simple way to do it, just read my way, the one i answered before
the
see 了
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
how?
先分3个一堆
+ Y  q9 o2 ?5 \% J" ?2 T# p公仔箱論壇共四堆) n+ m. V) L. |+ c6 D
称两次得出异常的在那一堆,其轻重
! q' E# p  ?* e5 {0 B0 S9 awww3.tvboxnow.com在异常的那一堆中在称一次, A& M& b9 z3 S* s1 ?% P
就可以找到了
divde the 12 balls into 3 sets of 4. 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。% V. b" s' ^2 v( k: [( j
weight any 2 sets.
3 [! r7 z; y4 J3 t7 f1 G公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third
7 i5 v: M9 [- |0 yif one of the 2 is heavier, then the heavy one is in that set4 s4 ^; j/ l2 V" z! u
then divide the 4 balls into 2.
* B2 a" J3 y: M3 e6 k* i3 V! mwww3.tvboxnow.comweigh them
( x$ \7 f  Y% C& x/ N( j6 u. mand divide the heavier into 1) b* H8 Y6 @' g4 y! l# \4 v+ v# U! y
and weight them.tvb now,tvbnow,bttvb4 o% r9 W3 G. w& D8 q# t
3 x weighing and get the ans.  
6 D  m" V7 ~$ c1 a9 B8 M公仔箱論壇in less than 15 secs.
1. 6 aside and weight.
6 q) e+ v/ a- d& {www3.tvboxnow.com2. heavier side from (1), 3 aside weight again.# X( F5 a" k; a! E2 C' k  p
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.
2 L. @7 J' y# i; Ntvb now,tvbnow,bttvb
+ L/ ^% b$ q5 a, O3 b+ u- {' k4 b& u公仔箱論壇but i have a question. 重量異常 can be heavier or lighter.... so......
返回列表