i found the ans in 30 mins but dont know correct or not?
7 N/ s9 T9 g# L% v/ b1 g! Btvb now,tvbnow,bttvbans is too long! but concepts are something like that:公仔箱論壇1 e$ p( [6 H' _$ @# y) ?
seprate 4 groups 3 balls in one group!
/ K6 J. o! o- }8 F N; D公仔箱論壇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) ^+ v: ~3 J, c9 @9 {% I$ \+ G
the last part is 1ball vs 1ball! something like that |