this is too easy!!
: @) D4 s3 ]8 A+ A5.39.217.76. G3 L. y# r9 p& w! ~7 n+ V7 a' p9 o
1. put 6 at each side.. take the one side which is heavier6 Y! k5 V/ `2 d7 M( b# ?3 i
2. put 3 at each side.. also take the heavier side5.39.217.76; t% z* f0 I" D* P7 h* ?* ^
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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