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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
# P) L0 t# S* E- itvb now,tvbnow,bttvbweigh A & B (ex. B heavier)
! Q* P4 ]& f0 u& e" b6 utvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)
; M* U! O$ ]0 d1 C0 i( rtvb now,tvbnow,bttvbto find which group has the weight difference and find out is it (A is lighter)" m3 J7 R5 w% l3 \
heavier or lighter
  l: U7 d3 L. s# `/ o0 \公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
+ J  m% s" i" a4 ^www2.tvboxnow.commeasure E vs F to find which 1 is lighter....
简单!!
easy
???
is it really tht hard?
thank you for your sharing!
???????????????
唔識
thx
;)) ;))
好難呀....
分成a,b,c三堆,分别为5,5,2三堆,先称a与b,若平衡,则中a中取一个与c中任一个称,就得到结果。若a与b不平衡,假设a略重,重a中随机取3个出来加上c中任一个,b中取3个出来加c中的任一个,若平衡,则a中剩余一个就为异常。若a仍重

哈哈

hv a look
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