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Re: CarTalk Puzzlerby tbone1 (Monsignor) |
on Nov 17, 2005 at 13:57 UTC ( [id://509405]=note: print w/replies, xml ) | Need Help?? |
There are 20,000 lights on. A person comes through and pulls the cord on every second light. A third person comes along and pulls the cord on every third light, etc. When someone comes who pulls every 20,000th chain, which lights are on? I mean, I'm all for trying to solve things programmatically, but do we need a program for this?
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