I heard this on the radio today and thought it was pretty cool. Enjoy:
Ok, so have 2 fuses and a lighter. Each fuse takes an hour to burn all the way through, and they're not attached to anything. They fuses burn at random, but take an hour overall (like, the first half of the fuse might take 10 minutes to burn but the second half would take 50 minutes). You have way to tell the time at all. No watch, cell phone, etc.
Question:
How do you tell when 45 minutes has gone by?
Hints:
Hint one:
[spoiler]If you light both ends of one fuse, that fuse will take 30 minutes to burn out[/spoiler]
Others coming if nobody can solve it
I hate riddles.....
Ok, you light one fuse on both ends. That is 30 minutes. Then you cut the other fuse in half and light both ends and that would be 15 minutes.
Umm... is this really that hard? Light one from both ends and wait till it burns out fully (30 Min), the instantly light another one from both ends and wait until it burns roughly half way (45 Min).
A different version of what the above poster said.
Previous 2 posters didn't read where it said they both burn at different rates.
No, they got it, since it still will take an hour to burn all the way through.
damn, you guys are smart :(
Quote from: JMV on April 20, 2008, 06:48:02 PM
Previous 2 posters didn't read where it said they both burn at different rates.
Use calculus?
Quote from: David. on April 20, 2008, 06:48:39 PM
No, they got it, since it still will take an hour to burn all the way through.
damn, you guys are smart :(
damn i wanted to start an argument
Quote from: Felt Reborn on April 20, 2008, 06:49:08 PM
Use calculus?
just trolling. baddood;
Quote from: JMV on April 20, 2008, 06:48:02 PM
Previous 2 posters didn't read where it said they both burn at different rates.
Oh...
Since it is random, maybe we'll get lucky and they'll burn at the same rate O_0
Quote from: JMV on April 20, 2008, 06:48:02 PM
Previous 2 posters didn't read where it said they both burn at different rates.
Above poster did not read the Spoiler.
Quote from: JMV on April 20, 2008, 06:49:29 PM
damn i wanted to start an argument just trolling.
You should know from experience what happens when you argue with logic and reason.
Quote from: Socks on April 20, 2008, 06:51:24 PM
Above poster did not read the Spoiler.
You should know from experience what happens when you argue with logic and reason.
You never went to NSider. spam;
Quote from: JMV on April 20, 2008, 06:52:02 PM
You never went to NSider. spam;
holy shit. i nearly spit on my Sierra Mist
Quote from: David. on April 20, 2008, 06:48:39 PM
No, they got it, since it still will take an hour to burn all the way through.
damn, you guys are smart :(
you're stupid
Because that other half may take just ten minutes to burn, so lighting both ends of the half would take 5 minutes.
Count to 2700
ask him which village is his baddood;
Light the first fuse at both ends and the second at one end
Once the first fuse is out, light the other side of the 2nd fuse.
good job reaper