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To: Bob Bryenton who wrote (16)	11/20/1996 11:14:00 AM
From: Bob Bryenton	of 136

A 12 Coins Step 1: break the coins in 3 groups of 4 (A B and C) - Weigh A against B, if they balance the fake coin is in C and we know that A and B contain good coins - Weigh A against C, if the C goes up the fake is lighter, If C goes down, fake is heavier - if A and B do not balance, we know that C contains good coins - Weigh the lighter of A or B agains C. If they balance, then the fake coin is in the heavier of A or B and we know the fake is heavier. If the lighter of A or B is also ligher than C then we know that C contains the Fake and it is lighter At this point we know which group of 4 contains the fake and if it is heavier or lighter Step 2: split your group of four in half and weigh 2 coins against 2 coins. You know if the fake is heavier, that the fake will be in the heavier 2 coins. Weigh each of the heavier 2 coins against each other and then pick up the heaviest coin as the fake. You know if the fake is lighter, that the fake will be in the lighter 2 coins. Weigh each of the lighter 2 coins against each other and then pick up the lighter coin as the fake.

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