i found the ans in 30 mins but dont know correct or not?5.39.217.77:8898. _5 |( ~3 m$ J* s; G6 w5 J$ {
ans is too long! but concepts are something like that:
+ n9 W4 p7 a- H. K1 X. Bseprate 4 groups 3 balls in one group! tvb now,tvbnow,bttvb- K, B& G7 R. T' l% y) N
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!
/ V8 f# X0 @% w9 |tvb now,tvbnow,bttvbthe last part is 1ball vs 1ball! something like that |