i found the ans in 30 mins but dont know correct or not?5 F1 \1 k. Q7 L) U/ i9 N
ans is too long! but concepts are something like that:tvb now,tvbnow,bttvb9 ^2 m7 Z2 F. F. A
seprate 4 groups 3 balls in one group! 4 J9 m& v% \( \. _# T# D
the 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- H9 S1 R' v7 f# Y" Y# V3 b
the last part is 1ball vs 1ball! something like that |