i found the ans in 30 mins but dont know correct or not?
2 b# z$ h3 e! w3 ~8 y; utvb now,tvbnow,bttvbans is too long! but concepts are something like that:5.39.217.77( I; z. ?9 A& G8 v' b
seprate 4 groups 3 balls in one group!
0 }3 V+ ~8 E' k7 E& T Htvb 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!公仔箱論壇) i9 n% h1 B7 B& C$ x: l
the last part is 1ball vs 1ball! something like that |