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ya.. guys.. the answer is as easy as burning both sides of one rope..... it's not that complicated. under the assumption it burns for 60 seconds, you can correctly assert that burning it on both sides will give you 30 seconds. doesn't matter if the rate changes as you move through the rope.. doesn't even matter if it ends up not in the middle. you burn both sides, it will burn for 30 seconds. i can actually write a proof for it.. but it's too much trouble because that would involve copy and pasting lots of mathmatical symbols. Anyways..did someoen tackle the 15 seconds one already??
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