Sunday, May 15, 2011


Rules :
  1. Assign digits from 1 to n to each weight, where n is the number of weights.
  2. The horizontal rod indicates that there is equal torque on both sides.
  3. The torque of each weight is its weight times its distance from fulcrum.
  4. Assume that the strings and rods have negligible weight.
Example :

 Solution :

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