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5.39.217.77:8898) m% e& c$ Z& J; [
共四堆
) w% K* Y  D" I& \称两次得出异常的在那一堆,其轻重* v/ ~9 o& M6 F( K( |4 I6 C" R+ [( L
在异常的那一堆中在称一次
9 U* L; b0 g5 s4 i" _; g4 NTVBNOW 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。就可以找到了
divde the 12 balls into 3 sets of 4.
* i' r8 i. Q% L" A" K3 E5.39.217.77:8898weight any 2 sets.
" ]$ k8 o7 _7 t7 otvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the thirdtvb now,tvbnow,bttvb: h9 N2 i! j. P& a0 l7 h# q
if one of the 2 is heavier, then the heavy one is in that set5.39.217.77:8898+ I8 @+ J: Z( Y) O$ I) E
then divide the 4 balls into 2.
( `. V6 d. p0 `2 Vweigh them公仔箱論壇2 ]$ T* e1 s9 ?, f) \# q5 l, A
and divide the heavier into 1TVBNOW 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。# w4 l, E: [! Z* e0 h: o
and weight them.tvb now,tvbnow,bttvb7 q# L& h- h7 @1 o  V3 [% E& ^/ Y
3 x weighing and get the ans.  0 N. E: c8 _$ w. I" ~
in less than 15 secs.
1. 6 aside and weight.公仔箱論壇& c, x1 A% \6 P) A7 x5 F
2. heavier side from (1), 3 aside weight again.
# s9 W# P. I$ |' M. 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.
& V: W# K/ g. ?( A* }, V公仔箱論壇tvb now,tvbnow,bttvb" H+ @! w' N0 Q+ G  e
but i have a question. 重量異常 can be heavier or lighter.... so......
返回列表