1. 1st divide to half take the heavier out公仔箱論壇. t( d, L. _! D3 `/ K
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)tvb now,tvbnow,bttvb. j7 T: j% e9 k0 F* u! d
3. Same method if is not equal on 2nd try. |