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1#
發表於 2011-11-4 12:49 AM
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1. 1st divide to half take the heavier out公仔箱論壇7 b4 k7 E* d) T& 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)
$ y U( @1 V9 }( d7 e g5.39.217.773. Same method if is not equal on 2nd try. |
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