this is too easy!!
h$ y. C2 q8 `5.39.217.77' \+ N3 O Q# t
1. put 6 at each side.. take the one side which is heavier5.39.217.77& X; n! t6 V3 C4 ~+ _
2. put 3 at each side.. also take the heavier side9 N% ^; B3 g7 U+ l
3. put 1 at each side.. if the weight balance then the one not put inside is the heavy ball.. else the side which is heavier is the heavier ball.. |
發表於 2009-1-7 05:31 AM
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