i found the ans in 30 mins but dont know correct or not?
4 f: H' ]0 {3 T, a5.39.217.76ans is too long! but concepts are something like that:tvb now,tvbnow,bttvb# o- q7 f6 Q6 p8 X" `0 c
seprate 4 groups 3 balls in one group!
& R$ s) I i5 a# M: Sthe 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!7 B- O- v, G/ L" p# C3 [/ \; h
the last part is 1ball vs 1ball! something like that |