| 12 balls spilt into 4 parts( 3 balls in 1 part- A, B, C, D), use two measure to find out wether it is heavier or lighter, then u should know which part is heavier/lighter. if A is heavier then mixed 1 ball into B, and C, balance A and B, if balance, the the mixed ball in c is the odd one, if not, then the heavier side should contains the odd ball. ;;) |
發表於 2006-12-5 10:34 AM
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