1. 1st divide to half take the heavier outtvb now,tvbnow,bttvb+ X( B$ \/ r% ?1 p L( U/ J o
2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for)公仔箱論壇3 h5 O7 D# R% n& X) B& Q$ b
3. Same method if is not equal on 2nd try. |