this is too easy!!
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1. put 6 at each side.. take the one side which is heavierwww3.tvboxnow.com3 `2 w( i6 w1 b& t7 `
2. put 3 at each side.. also take the heavier side
4 d4 Y3 L; L8 z3 Q/ k' F& G6 P7 C" I% @# [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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