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Mice & Ropes

Math brain teasers require computations to solve.

 

Puzzle ID:#6919
Fun:*** (2.37)
Difficulty:*** (2.76)
Category:Math
Submitted By:majd****!!
Corrected By:cnmne

 

 

 



You have two identical ropes and three mice. Each mouse bites off the rope at a different biting speed. All three biting speeds are constant.

Mouse(A) bites off one rope in 60 minutes.
Mouse(B) bites off one rope in 90 minutes.
Mouse(C) bites off one rope in 180 minutes.

You do not have any time or distance measuring tools and the length of the rope is unknown. How can you measure 75 minutes?

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