this is too easy!!
9 ?% r0 {* \; h! L6 c% jos.tvboxnow.com
( u, j E" _* B- W3 r/ @( N) ]- ]) a, k1. put 6 at each side.. take the one side which is heavier8 G4 N6 a& j( V# Q
2. put 3 at each side.. also take the heavier side公仔箱論壇% D7 a1 ^+ L5 ]
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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