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1:28

The Burning Ropes Riddle

measure 45 minutes with two ropes

You have 2 ropes. Each takes exactly 60 minutes to burn from one end to the other, but they burn unevenly: half a rope does not necessarily take 30 minutes. With a lighter, how do you measure exactly 45 minutes?

Source: A classic puzzle, retold by INFINITE SUM and fact-checked against our curated notes

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