September 30, 2005
want more?
alright. if you are so smart:
Burning rope
There are two lengths of rope.
Each one can burn in exactly one hour.
They are not necessarily of the same length or width as each other.
They also are not of uniform width (may be wider in middle than on the end), thus burning half of the rope is not necessarily 1/2 hour.
By burning the ropes, how do you measure exactly 45 minutes worth of time?
light both ends of one rope and one end of the other. when the first rope is completely burned up (30 minutes) light the unlit end of the other.
Posted by: kwc at September 30, 2005 01:08 PMWhat he said (I did it without checking for answers, but my restating the answer would be kinda pointless :) ).
These questions are all about inducing asymmetry (and they're fun).
Posted by: Alex at September 30, 2005 01:24 PMyou two make me sick!
stop being so smart. or, cut half of your brains and give it to me. i'll append them on to be super brain woman ;)
Posted by: rcp at September 30, 2005 03:10 PM