1. 1st divide to half take the heavier out" I- m+ h: i1 W3 s3 a8 Q0 X* J
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/ p8 L0 g! x' s- ^& O5 h$ ^
3. Same method if is not equal on 2nd try. |
發表於 2011-11-1 01:28 PM
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