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Another coiins problem

Posted By: Bob Koca
Date: Monday, 25 February 2019, at 5:36 p.m.

You have 6 coins. 4 weigh exactly the same and the other two are slightly off. They might both be heavy or both be light, or one could be light with other being heavy. The amount they are off by might be the same or different.

What is the fewest number of weighings using a balance scale that could conclusively determine the 2 coins that are off in weight?

Messages In This Thread

• Another coiins problem
  Bob Koca -- Monday, 25 February 2019, at 5:36 p.m.
  • Another coiins problem
    Tom Keith -- Thursday, 28 February 2019, at 6:49 p.m.
    • Another coiins problem
      Nack Ballard -- Thursday, 28 February 2019, at 11:00 p.m.
      • Two-counterfeit puzzle -- SOLUTION
        Nack Ballard -- Friday, 8 March 2019, at 4:56 a.m.
        • Two-counterfeit puzzle -- SOLUTION
          Joe Russell -- Monday, 11 March 2019, at 10:10 a.m.