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Old 06-15-2010, 05:00 AM   #13
dreams
It's about the umbrella
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And again

Spoiler:
Divide the coins into 4 bags. 3 coins in each bag =12

1- Weigh any 2 bags. If the same weight then remove one and add the 3rd bag to the scale.

2- If the 3rd bag:
  • weighs the same, then the fake is in the 4th bag. Pay the miser with the 4th bag.

****

1-Weigh any 2 bags. If uneven weight then remove either the lighter or heavier bag and add the 3rd bag to the scale.

2- If the 3rd bag:
  • weighs the same, then the fake is in the bag that was just removed. Pay the miser with that bag.
  • results in uneven, remove the bag that matches the weight of the first one removed (lighter or heavier) . The fake is in the bag still on the scale.


I give up. I have to be up in 4 1/2 hours and I am brain dead.
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