i found the ans in 30 mins but dont know correct or not?
# e# y8 b, J$ r! T% \os.tvboxnow.comans is too long! but concepts are something like that:" S$ t5 o2 ]$ m3 \' t
seprate 4 groups 3 balls in one group!
- @2 l3 F) f, Y2 j# Otvb now,tvbnow,bttvbthe important part is the 2nd times which need to find out the fake ball is heavier or lighter by use the normal ball that u find at the first time!tvb now,tvbnow,bttvb ?. v, ~+ C% L" t4 Q; \$ L
the last part is 1ball vs 1ball! something like that |