Soluna Posted November 27, 2021 Share Posted November 27, 2021 You have two ropes. Each burns completely in exactly one hour. However, they are different lengths and thus burn at different rates. Also, along each rope the width & material changes, so they burn at different rates at different places. The only thing you know is that they each burn completely in one hour exactly. You have a lighter. How do you measure exactly 45 minutes? Quote Link to comment Share on other sites More sharing options...
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