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Measure 45 Minutes

Logic puzzles require you to think. You will have to be logical in your reasoning.

 

Puzzle ID:#673
Fun:*** (2.61)
Difficulty:*** (2.33)
Category:Logic
Submitted By:vikass***
Corrected By:Mogmatt16

 

 

 



You have two ropes. Each takes exactly 60 minutes to burn. They are made of different material so even though they take the same amount of time to burn, they burn at separate rates. In addition, each rope burns inconsistently. How do you measure out exactly 45 minutes?


Answer

Take one rope and burn it at both ends.
At the same time, burn one end of the
other rope. When the first rope finishes
burning (ie. 30 minutes), light the other
end of the remaining rope (half of the
remaining 30 minutes gives you 15 minutes)
When it burns out, that`s 45 minutes.

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