GeneralSolvesv1

Measure 45 minutes with two uneven-burning ropes

Burning from both ends halves a ropes remaining burn time regardless of uneven rate.

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Output
Exactly 45 minutes measured
Input
Two ropes that each take 60 minutes to burn but burn unevenly
Relationship

What connects the input and output?

Light rope one at both ends and rope two at one end. When rope one finishes after 30 minutes, light the other end of rope two. Its remainder burns in 15 minutes.

Sources

1
  1. en.wikipedia.org: Measure 45 minutes with two uneven-burning ropesen.wikipedia.orgCC-BY-SA-4.0

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