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Challenge 261: Heading Home

Santa has been out delivering presents with Holly and Ivy (two of the elves). He has just one gift left on his new rocket-powered sleigh. This is an electric tandem (two-seater bicycle), which has turned out to be surplus to requirements.

Santa, Holly and Ivy are 37 km from their home at the North Pole when the sleigh breaks down. They land the sleigh safely but cannot repair it.

Given that in the snowy environment the tandem has a maximum speed of 25 km per hour, and each of these three individuals can walk at a maximum speed of 5 km per hour, is it possible for all of them to get home in the next 3 hours?

Justify your answer carefully.

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