i found the ans in 30 mins but dont know correct or not?os.tvboxnow.com+ P- a# u6 v" M+ M% M( Y7 ~1 o# X* A
ans is too long! but concepts are something like that:tvb now,tvbnow,bttvb+ U% }3 [5 c' D2 q8 q
seprate 4 groups 3 balls in one group!
( G. l K' m2 {) }" c$ ^% f! @tvb 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!
) F7 }1 a6 m# o! R4 [the last part is 1ball vs 1ball! something like that |