Coins - Brain Teasers Forum

Coins Rate Topic: 1 Votes

#1 rookie1ja

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Posted 30 March 2007 - 04:50 PM

Coins - Back to the Logic Problems
Imagine there are 3 coins on the table: gold, silver, and copper. If you make a truthful statement, you will get one coin. If you make a false statement, you will get nothing.
What sentence can guarantee you getting the gold coin?

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#2 Tap_521

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Posted 25 May 2007 - 01:55 AM

ahhhhhhhhhhhhhhhhh... very tricky i'll use that next time! hey, you will give me neither $50 or $75 only $10000000000000000000000!

#3 Frozen

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Posted 29 May 2007 - 08:54 PM

if they gave you nothing then your statement would be incorrect....

#4 jojorox225

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Posted 06 June 2007 - 05:33 PM

ok well i don't think this 1 is really that fair because you never said the coins are real all you said is imagine them so how do you get 1???

hope im right,

#5 schmiggen

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Posted 08 June 2007 - 09:06 PM

Frozen: You have to assume that everything that the problem states is true actually is true.

From that, assume you do in fact say "you will give me neither the silver nor the copper coin." If you are not given any coins, then what you said is true; getting nothing means you didn't get silver and you didn't get copper. But the problem says that if you say a true statement, you will be given one of the coins. So it can't be the case that you weren't given any coins, because it produces a contradiction.